Every DC comic character we know to exist in the Batman Arkhamverse
Because I can’t sleep and felt like doing a dumbass list for the Batman Arkham series that nobody cares about, here’s every single DC comic character we know exists in the Arkhamverse. This includes everyone who appears on screen as well. I’m only counting the games as the comics and Assault on Arkham are filled with so many continuity errors that they’re not worth reading/watching.
Bruce Wayne as Batman - First appearance in Detective Comics v1 #27 (1939)
So let’s get the obvious ones out of the way first. Batman is the PC, so DUH he’s gonna be in it. A member of the Justice League, Batman’s career lasted about 17 years by the time of Suicide Squad: Kill the Justice League.
Dick Grayson as Robin/Nightwing - First appearance in Detective Comics v1 #38 (1940)
Initially just DLC for challenge maps in Arkham City and multiplayer mode in Arkham Origins, he gets involved in the story in Arkham Knight. His relationship with Batman seems much colder than in the comics. Arkham Shadow reveals that he was a member of the “Rats” group of disenfranchised and abandoned people of Gotham.
Jason Todd as Robin/Red Hood - First appearance in Batman v1 #357 (1983)
Only vaguely hinted at in Arkham Asylum and City before showing up proper in Arkham Knight. Seemed to be a positive presence in Bruce’s life before his disappearance.
Tim Drake as Robin - First appearance in Batman v1 #436 (1989)
Shows up during AC and AK’s story modes. Is in his third year as Robin by the time of Arkham Knight in this universe. Is in a relationship with Oracle.
Barbara Gordon as Batgirl/Oracle - First appearance in Detective Comics v1 #359 (1967)
Is heard in Arkham Asylum and Arkham City and makes an apperance in Arkham Origins, Arkham Shadow and Arkham Knight. In the Arkhamverse she’s only been Oracle for about 8 years by the time of Suicid Squad: Kill the Justice League.
Alfred Pennyworth - First appearance in Batman v1 #16 (1943)
Heard via communication in Arkham City before showing up in Arkham Origins, Arkham Shadow, Arkham VR and Arkham Knight.
Lucious Fox - First appearance in Batman v1 #307 (1979)
Gets name dropped in Arkham Asylum and Arkham City and makes a full appearance in Arkham Knight. Helps fund and equip the Justice League.
Ace the Bat-Hound - First appearance in Batman v1 #92 (1955)
A bowl with Ace’s name can be found in Bruce’s office in Arkham Knight.
Thomas & Martha Wayne - First appearance in Detective Comics v1 #33 (1939)
Can’t have Batman without these two. Well, you can, but you know what I mean.
Leslie Thompkins - First appearance in Detective Comics v1 #457 (1976)
Friend of Bruce Wayne and Batman. A sign for her clinic can be spotted in Arkham City. Appears in Arkham Shadow.
James Gordon - First appearance in Detective Comics v1 #27 (1939)
Appears in every game except Suicide Squad: Kill the Justice League. His relationship with Batman sours considerably during the events of Arkham Knight. Becomes the mayor of Gotham following the Arkham Knight incident.
Aaron Cash - First appearance in Arkham Asylum: Living Hell #1 (2003)
Aaron Cash’s role in the Arkham games is much more prominent than it is in the comics. Appears in every game except the Origins titles.
Harvey Bullock - First appearance in Detective Comics v1 #441 (1974)
Only appears in Arkham Origins but his name can be spotted on the shift list in Arkham Knight.
Renee Montoya - First appearance in Batman v1 #475 (1992)
Her name can be seen on the shift list in the GCPD building in Arkham Knight. It is unknown if she has taken the mantle of the Question in this universe.
Selina Kyle as Catwoman - First appearance in Batman v1 #1 (1940)
Makes her full appearance in Arkham City, Arkham Origins: Blackgate and Arkham Knight. Leaves a flirty message on Bruce’s answering machine in Arkham Shadow. Left Gotham after draining the Riddler’s bank account.
Holly Robinson - First appearance in Batman v1 #404 (1987)
Mentioned in Interview tapes between Hugo Strange and Catwoman in Arkham City.
Michael Lane as Azrael - First appearance in Batman v1 #665 (2007)
Appears in Arkham City and Arkham Knight. In the Arkhamverse, Michael Lane is the first Azrael Batman meets as opposed to Jean-Paul Valley.
Vicki Vale - First appearance in Batman v1 #49 (1948)
Appears in Arkham Origins, Arkham Shadow, Arkham City and Arkham Knight. A relationship between her and Bruce Wayne is implied in Arkham Knight.
Jack Ryder as the Creeper - First appearance in Showcase #73 (1968)
Jack Ryder is heard in Arkham Asylum, Arkham Origins and Arkham Shadow and appears in Arkham City and Arkham Knight. The Creeper is mentioned by Vicki Vale in an interview tape with Quincy Sharp, though we never see him. Voices the Batman Experience tour along with Vicki Vale in Suicide Squad: Kill the Justice League.
Alexandra Brackett - First Appearance in Robin v4 #189 (2007)
Can be heard on news broadcasts in Arkham Shadow.
Helena Bertinelli as The Huntress - First appearance in The Huntress v1 #1 (1989)
Is mentioned in the interview tape along with the Creeper by Vicki Vale in Arkham City. IMs between her and Oracle can be seen in Arkham Knight.
Dinah Lance as Black Canary - First appearance in Justice League of America v1 #75 (1969)
Is mentioned in the IMs between Oracle and Huntress and by Militia grunts.
Duke Thomas as the Signal - First appearance in Batman v2 #21 (2013)
Riddler mentions one of “Batman’s kid helpers” as coming out during the day and having light powers in Suicide Squad: Kill the Justice League.
Cyrus Pinkney - First appearance in Batman: Legends of the Dark Knight #27 (1992)
Gotham’s architect. His name is seen throughout Arkham City, Arkham Origins and Arkham Knight. His story is told in Arkham Origins, including his mysterious death. In Arkham Shadow, recordings of his exploration of Blackgate’s underground can be found.
Solomon Wayne - First appearance in Batman: Legends of the Dark Knight #27 (1992)
Cyrus’ friend. The Solomon Wayne Courthouse is named after him.
Anthony Wayne - First Appearance in World’s Finest v1 #186 (1969)
Mentioned in Arkham Shadow in the history of Blackgate recordings.
Venessa Rios - First appearance in Robin v4 #181 (2009)
Appears in Arkham Shadow and was the presiding judge when Harvey Dent was horribly scarred. Unlike her comic counterpart who is a young district attorney, she is an older judge in this universe.
Anaica Fritch - First appearance in Gotham Academy: Second Semester #5 (2017)
The lawyer appears in the courtroom in Arkham Shadow on the day of Harvey’s scarring.
The Justice League - First appearance in The Brave and the Bold v1 #28 (1960)
In this universe the League was formed after the events of Arkham Knight. As of this writing, the Justice League roster consists of Superman, Batman, Wonder Woman, Green Lantern and the Flash.
AmerTek Industries - First appearance in Steel v2 #1 (1994)
Billboards and signs for the corporation can be seen in Arkham Origins.
Clark Kent as Superman - First appearance in Action Comics v1 #1 (1938)
Various thugs and Militia grunts make reference to Superman in Arkham Knight. Appears in Suicide Squad: Kill the Justice League.
Lois Lane - First appearance in Action Comics v1 #1 (1938)
Appears in Suicide Squad: Kill the Justice League to report on updates regarding Brainiac’s invasion.
Jimmy Olsen - First appearance in Action Comics v1 #6 (1938)
His desk can be found in the Daily Planet in Suicide Squad: Kill the Justice League.
Perry White - First appearances in Superman v1 #7 (1940)
Perry is mentioned by Lois Lane and his name can be seen in the Daily Planet offices.
Steve Lombard - First appearance in Superman v1 #264 (1973)
His desk can be found in the Daily Planet in Suicide Squad: Kill the Justice League.
Cat Grant - First appearance in The Adventures of Superman #424 (1987)
Her desk can be found in the Daily Planet in Suicide Squad: Kill the Justice League.
Bibbo Bibbowski - First appearance in The Adventures of Superman #428 (1987)
Ads where he promotes his bar can be heard in Suicide Squad: Kill the Justice League.
Wonder Woman - First appearance in All-Star Comics v1 #8 (1942).
Appears in Suicide Squad: Kill the Justice League.
Barry Allen as the Flash - First appearances in Showcase #4 (1956)
The Flash is vaguely hinted at in Arkham Knight and appears in Suicide Squad: Kill the Justice League. As of this writing Barry Allen is the only confirmed Flash.
John Stewart as Green Lantern - First appearance in Green Lantern v2 #87 (1971)
As of this writing, John Stewart is the only confirmed lantern and appears in Suicide Squad: Kill the Justice League. Has a rivalry with Deadshot.
The Guardians of the Universe - First appearance in Green Lantern v2 #1 (1960)
Mentioned by Green Lantern in his hologram showcase in the Hall of Justice tour in Suicide Squad: Kill the Justice League.
Carol Ferris - First appearance in Showcase #22 (1959)
Signs for Ferris Aircraft can be seen in Arkham Origins. Whether she’s involved with Hal Jordan or ever became Star Sapphire is unknown.
Oliver Queen as Green Arrow - First appearance in More Fun Comics #73 (1941)
Queen Industries is mentioned in Arkham Origins and Arkham Knight and Jack Ryder makes a reference to Oliver and his alter ego in Arkham Knight. One of his company buildings can be see in Suicide Squad: Kill the Justice League and an ARGUS grunt says that he thinks the Suicide Squad is “cooler than Green Arrow”.
J’onn J’onnz as Martian Manhunter - First appearance in Detective Comics v1 #225 (1955)
Although he doesn’t appear in the game, his civilian name of John Jones can be seen on the shift list in the GCPD building in Arkham Knight.
Aquaman - First appearance in More Fun Comics #73 (1941)
Harley Quinn asks King Shark what he’s like in Suicide Squad: Kill the Justice League. It is unknown if Arthur Curry or Orin bears the Aquaman title.
Ted Grant as Wildcat - First appearance in Sensation Comics #1 (1942)
He is mentioned by one of the diners at the beginning of Arkham Knight when talking about a promotional fight between him and Albert King. Posters advertising the boxing match can be seen in various areas.
Kate Kane as Batwoman - First appearance in 52 #7 (2006)
Leaves a telling message on Bruce Wayne’s answering machine in Arkham Knight. Mentioned in Arkham Shadow by Lonnie Machin.
Maggie Sawyer - First appearance in Superman v2 #4 (1987)
Mentioned by Kate Kane in her message.
Ray Palmer as The Atom - First appearance in Showcase #34 (1961)
Ray Palmer’s locker can be found in the Ace Chemicals building in Arkham Knight.
Ted Kord as Blue Beetle - First appearance in Captain Atom v1 #83 (1966)
A sign for Kord industries can be found in Arkham Knight. He enters a partnership with Wayne Industries in Arkham Shadow.
Michael John Carter as Booster Gold - First appearance in Booster Gold v1 #1 (1986)
Signs for his company Booster Gold International can be seen in Arkham Origins. Posters with him on it can be seen in Arkham Knight.
Blaze Comics - First appearance in Booster Gold v1 #4 (1986)
A store and truck bearing the name of the comic publisher can be found in Arkham Origins. Whether they publish Booster Gold comics in the universe is unknown.
Zatanna - First appearance in Hawkman v1 #4 (1964)
Posters for her magic show can be seen in Arkham Origins and Suicide Squad: Kill the Justice League. Her magic store can be seen in Arkham Knight.
Jonathan Law - First appearance in Star-Spangled Comics #1 (1941)
His book “Altered Egos: The Mystery Men of World War II“ can be spotted in the Bludhaven Police Department offices in Harley’s episode in Arkham Knight.
Jon Valor as the Black Pirate - First appearance in Action Comics v1 #23 (1940)
Is mentioned in Arkham Shadow as the man who settled, commandeered and named Blackgate island.
Vic Sage - First appearance in Blue Beetle v5 #1 (1967)
Hosts a radio call in show called “Ask the Question”. If he ever dons the identity of the Questing in this verse is unknown.
John Constantine - First appearance in Swamp Thing v2 #25 (1984)
His office can be found in Arkham Knight.
Madame Xanadu - First appearance in Doorway to Nightmare #1 (1978)
Her shop can be found in Suicide Squad: Kill the Justice League.
Alec Holland as Swamp Thing - First appearance in Swamp Thing v1 #1 (1972)
A bench in the gardens with a plaque saying "In Loving Memory... Dr. Alec Holland" can be found in Arkham Knight.
The Department of Extranormal Operations - First appearance in Batman v1 #550 (1998)
The D.E.O. is mentioned by Amanda Waller in her conversation with Mrs. Freeze in Suicide Squad: Kill the Justice League.
Director Bones - First appearance in Infinity Inc. v1 #16 (1985)
Mentioned in one of Riddler’s riddles in Suicide Squad: Kill the Justice League. Amanda Waller can be heard talking to him as he offers Frankenstein’s services.
Frankenstein - First appearance in Seven Soldiers: Frankenstein #1 (2006)
Mentioned by Waller as she’s talking to Director Bones.
Maxwell Lord - First appearance in Justice League v1 #1 (1987)
Amanda Waller can be heard talking to Max in Suicide Squad: Kill the Justice League, accusing him of whispering poison into the President’s ear.
Gillian Loeb - First appearance in Batman v1 #404 (1987)
The corrupt police commissioner during Arkham Origins. Tried to bully Gordon into his corrupt way of thinking and had to be talked out of doing anything drastic by Black Mask. Is later executed instead of Calendar Man.
Howard Branden - First appearance in Batman v1 #405 (1987)
A minor Year One character who got more screen time in Arkham Origins. Appears in Arkham Shadow as a member of Tyger Security working at Blackgate.
Arnold Flass - first appearance in Batman v1 #404 (1986)
The corrupt cop is mentioned by Black Mask when talking to Loeb.
Amanda Waller and the Suicide Squad - First appearance in Legends #1 (1986)
Appears at the end of Arkham Origins and in Arkham Origins: Blackgate, looking at possible members for the Suicide Squad. She is indirectly mentioned in Arkham Knight. Project Cadmus is also mentioned. Appears in Suicide Squad: Kill the Justice League.
Rick Flag - First appearance in The Brave and the Bold v1 #25 (1959)
Appears alongside Amanda Waller in Arkham Origins: Blackgate and Suicide Squad: Kill the Justice League.
A.R.G.U.S. - First appearance in Justice League v2 #7 (2012).
The group appears in Suicide Squad: Kill the Justice League.
Checkmate - First appearance in Action Comics v1 #598 (1988)
Mentioned by Amanda Waller in her conversation with Mrs. Freeze in Suicide Squad: Kill the Justice League.
Stormwatch - First appearance in Stormwatch v3 #1 (2011)
Mentioned by Amanda Waller in her conversation with Mrs. Freeze in Suicide Squad: Kill the Justice League.
Floyd Lawton as Deadshot - First appearance in Batman v1 #59 (1950)
Is one of the 8 assassins after Batman’s head in Arkham Origins and is contracted by Hugo Strange in Arkham City to kill political prisoners, Bruce Wayne and Batman. Is released from prison after the lawsuit following the Arkham City debacle. Part of the Suicide Squad. According to Suicide Squad: Kill the Justice League, the Deadshot seen in previous games is possibly from another Earth.
Zoe Lawton as Lawless - First appearance in Deadshot v2 #1 (2005)
Appears in Suicide Squad: Kill the Justice League as Lawless.
Benjamin Turner as Bronze Tiger - First appearance in Richard Dragon, Kung-Fu Fighter #1 (1975)
Appears in Arkham Origins: Blackgate as an inmate of Blackgate prison, forced into a deathmatch against Batman by the Penguin. Amanda Waller shows interest in his skills and recruits him into the Suicide Squad. He seemingly turned down the offer and was placed back in Blackgate and appears in Arkham Shadow.
Nanaue as King Shark - first appearance in Superboy v4 #0 (1994)
Appears in Suicide Squad: Kill the Justice League as a long time prisoner of Amanda Waller.
George Harkness as Captain Boomerang - First appearance in The Flash v1 #117 (1960)
A thug mentions that he’s being hunted by Captain Boomerang in Arkham Origins. Appears in Suicide Squad: Kill the Justice League.
Mikron O'Jeneus as Gizmo - First appearance in New Teen Titans v1 #3 (1981)
Is the Tech guy for A.R.G.U.S. during Brainiac’s invasion. Has a longstanding rivalry with Penguin.
Zalika as Hack - First appearance in Suicide Squad v5 #2 (2016)
Is part of the Suicide Squad in Suicide Squad: Kill the Justice League.
Vlatava - First appearance in World’s Finest v1 #251 (1978)
Posters of Vertigo’s home county can be seen in Arkham Knight.
Mendo Soap
The Mendo Soap factory can be found in Arkham Origins.
Soder Cola - First appearance in Action Comics v1 #663 (1991)
Billboards for the brand can be found in Arkham Origins and Suicide Squad: Kill the Justice League.
Stacy’s
The Store can be found in Arkham Origins and Suicide Squad: Kill the Justice League .
Markovia - First appearance in Batman and the Outsiders v1 #1 (1983)
Posters of the country can be found in Arkham Knight.
Joe Chill - First appearance in Detective Comics v1 #33 (1933)
The man, the myth, the legend. He never makes a full appearance until Arkham VR during Bruce’s nightmare, where he speaks to him after murdering his parents. Finally appears in person in Arkham Shadow as an inmate at Blackgate.
Lewis Moxon - First appearance in Detective Comics v1 #235 (1956)
His name is on an evidence board in the GCPD in Arkham Origins. Whether he hired Joe Chill to murder the Waynes in this universe is unknown.
Carmine Falcone - First appearance in Batman v1 #404 (1987)
Mentioned in Arkham Origins and appears in Arkham Shadow as an inmate at Blackgate. Despite being put away by Batman sometime before Arkham Shadow, he was still in business sometime before Arkham City. Quincy Sharp closed down all of his operations. Whether he’s alive or not in unclear.
Carla Viti - First appearance in Batman: The Long Halloween #1 (1996)
Carmine’s sister. Her name is seen on a board in the GCPD naming the Falcone family members in Arkham Origins.
Lucia Viti - First appearance in Batman: Dark Victory #1 (1999)
Carmine’s neice and Carla’s daughter. Her name is seen on a board in the GCPD naming the Falcone family members in Arkham Origins
Alberto Falcone as the Holiday Killer - First appearance in Batman: The Long Halloween #1 (1996)
Carmine’s son appears in Arkham Origins as a hostage for the Penguin. Extortion files reveal he was active as the Holiday Killer.
Vincent Falcone - First appearance in Batman: The Long Halloween #9 (1997)
Carmine’s father. His name is seen on a board in the GCPD naming the Falcone family members in Arkham Origins
Louisa Falcone - First appearance in Catwoman: When in Rome #4 (2005)
Carmine’s wife. Her name is seen on a board in the GCPD naming the Falcone family members in Arkham Origins.
Sofia Falcone - First appearance in Batman: The Long Halloween #6 (1997)
Carmine’s daughter. Her name is seen on a board in the GCPD naming the Falcone family members in Arkham Origins. Unknown if she became the Hangman killer in this universe.
Kitrina Falcone - First appearance in Batman v1 #692 (2009)
Her name is seen on a board in the GCPD naming the Falcone family members in Arkham Origins. Unlike her comic counterpart who was allegedly Alberto’s daughter, she is listed as Carmine’s daughter in this universe. It is unknown if she ever became Kittyhawk or Catgirl in this universe.
Dr. Bradford Thorne as the Crime Doctor - First appearance in Detective Comics v1 #77 (1943)
His labcoat and ID card can be found in the Elliot Memorial Hospital
Rupert Thorne - first appearance in Detective Comics v1 #469 (1977)
Is mentioned by Anarky in Arkham Origins as one of the crime bosses that secretly controls Gotham. His name is also on an evidence board in the GCPD building.
Tony Zucco - First appearance in Detective Comics v1 #38 (1940)
His name is on the evidence board in the GCPD building in Arkham Origins
Jim Jansen - First appearance in Batman v1 #134 (1960)
His name is on the evidence board in the GCPD building in Arkham Origins
The Sullivan Crime Family - First appearance in Batman: the Long Halloween #2 (1997)
They are on the evidence board in the GCPD building in Arkham Origins
The Skeevers Brothers - First Appearance in Batman v1 #405 (1987)/Batman: Dark Victory #1 (1999)
They are on the evidence board in the GCPD building in Arkham Origins
Simon Stagg - First appearance in The Brave and the Bold v1 #57 (1965)
Founder of Stagg Enterprises. He collaborates with Scarecrow and the Arkham Knight.
Boss Maroni - First appearance in Detective Comics v1 #66 (1942)
The Maroni family is massacred by the Falcones at some point as revealed in an Arkham City Story. Said to have been run out of Gotham by Red Hood in Arkham Knight.
J. Devlin Davenport - First appearance in Detective Comics v1 #685 (1995)
Is mentioned by thugs in Arkham Origins.
Anthony Rizzoli - First appearance in Batman: Night Cries (1992)
Mentioned in a newspaper article as having been punched out by Harvey Dent in court in Arkham Shadow.
The Joker - First appearance in Batman v1 #1 (1940)
The main baddie of the Arkhamverse. He haunts Batman even in death.
Harleen Quinzel as Harley Quinn - First appearance in Batman: Harley Quinn (1999)
Joker’s right hand woman. Takes over the gang after Arkham City and is part of the Suicide Squad. Her origins are explored in Arkham Shadow.
Edward Nygma as The Riddler - First appearance in Detective Comics v1 #140 (1948)
Pesters Batman in every game except Arkham Origins: Blackgate. Starts pestering Catwoman in Arkham City and Arkham Knight. Challenges the Suicide Squad with riddles in Suicide Squad: Kill the Justice League.
Harvey Dent as Two-Face - First appearance in Detective Comics v1 #66 (1942)
His cell can be found in Arkham Asylum and he appears in Arkham City and Arkham Knight. His origins are explored in Arkham Shadow.
Gilda Dent - First appearance in Detective Comics v1 #66 (1942)
In Robin’s Arkham Knight episode, a portrait of her is seen in Two-Face’s lair. She is married to Harvey Dent during the events of Arkham Shadow.
Christopher Dent - First appearance in Batman v1 Annual #14 (1990)
Appears in Arkham Shadow.
Oswald Cobblepot as the Penguin - First appearance in Detective Comics v1 #58 (1941)
Ads for the Iceberg Lounge can be found in Arkham Asylum and has made an appearance in every game since.
Pamela Isley as Poison Ivy - First appearance in Batman v1 #181 (1966)
Appears in Arkham Asylum, Arkham City and Arkham Knight. Gives her life to stop Scarecrow’s toxin in Arkham Knight. Is reborn in Suicide Squad: Kill the Justice League.
Jonathan Crane as Scarecrow - First appearance in World’s Finest Comics #3 (1941)
Scarecrow appears in Arkham Asylum and Arkham Knight. His origins are explored in the Arkham Shadow. A flyer asking for participants for his "clinical research study” can be found on the Final Offer in Arkham Origins. His name and signature is seen in the Blackgate Visitors log, showing he visits often. It’s implied he is still somewhere within the prison at the time of “Black Mask’s” break in, as there is no time of departure since his last visit. In Arkham City, his mask and a boat with a Joker thug used as a guinea pig can be found.
Tommy Elliot as Hush - First appearance in Batman v1 #609 (2003)
His name can be seen on the shift list in Arkham Asylum and makes a full appearance in Arkham City and Arkham Knight. Is mentioned by Alfred in Arkham Origins.
Roger & Marla Elliot - First appearance in Detective Comics v1 #846 (2008)
A plaque dedicated to Tommy’s parents can be found in the Elliot Memorial Hospital in Arkham Knight
Slade Wilson as Deathstroke - First appearance in New Teen Titans v1 #2 (1980)
Appears in Arkham Origins as one of the 8 assassins after Batman’s bounty. Beaten by Batman during the Bat’s rookie years. He shows up 10 years later in Arkham Knight, contracted by Scarecrow to kill Batman. Appears in Suicide Squad: Kill the Justice League.
Rose Wilson as Ravager - First appearance in Deathstroke the Terminator v1 #15 (1992)
Is mentioned in conversation between Slade and Amanda Waller in Suicide Squad: Kill the Justice League. Amanda considered her as a potential protege.
Tropidor - First appearance in Wonder Woman v1 #314 (1984)
Deathstroke talks about his experiences in Tropidor in Arkham Knight.
Qurac - First appearance in Tales of the Teen Titans v1 #51 (1985)
Deathstroke talks about his experiences in Qurac in Arkham Knight.
Lazlo Valentin as Professor Pyg - First appearance in Batman & Robin v1 #1 (2009)
Appears in Arkham Knight. In this universe he is slightly more coherent as well as the leader of the Circus of Strange.
Phosphorus Rex - First appearance in Batman & Robin v1 #1 (2009)
Mentioned by Professor Pyg in his advertisement of the Circus of Strange.
Big Top - First appearance in Batman & Robin v1 #1 (2009)
Mentioned by Professor Pyg in his advertisement of the Circus of Strange.
Kushti as Siam - First appearance in Batman & Robin v1 #1 (2009)
Mentioned by Professor Pyg in his advertisement of the Circus of Strange.
Janosz Valentin - First appearance in Batman Incorporated v1 #4 (2011)
Professor Pyg made recordings for his son in Arkham Knight. Whether he continued his father’s legacy and became the Son of Pyg is unknown.
Maxie Zeus - First appearance in Detective Comics v1 #483 (1979)
His cell can be found in Arkham Asylum and his nightclub was still open after his death before Arkham City was built.
Waylon Jones as Killer Croc - First appearance in Batman v1 #357 (1984)
Appears in Arkham Asylum, Arkham City, Arkham Knight & Arkham Origins. His condition has worsened to the point where he is barely anything more than a slobbering animal.
Quorum - First appearance in Guy Gardner #16 (1994)
The genetics company name and logo can be spotted in Arkham Knight. In this universe, they’re responsible for Killer Croc’s worsening condition.
Kirk Langstron as Man-Bat - First appearance in Detective Comics v1 #400 (1970)
Appears in Arkham Knight. He is on the loose again by the end of the game.
Francine Langstrom - First appearance in Detective Comics v1 #402 (1970)
Appears in Arkham Knight. She is accidentally killed by Kirk. Or is she...?
Thomas Blake - First Appearance in Detective Comics v1 #311 (1963)
Posters for the Gotham Zoo attraction “Jungle Cats”, presented by Thomas Blake, can be spotted in Arkham Origins. Whether he dons the identity of Catman in this universe is unknown.
Dr. Linda Friitawa - First appearance in Batman v1 #627 (2004)
A wanted poster for her can be found in the Elliot Memorial Hospital. It is unknown if she took the villain identity of Fright.
James Gordon Jr. - First appearance in Batman v1 #407 (1987)
A wanted poster for him can be found in Suicide Squad: Kill the Justice League, confirming that he has become a psychopathic killer in this verse as well.
Chris Nakano as Takeo Yamashiro - First appearance in Detective Comics v1 #1027/Batman and the Outsiders #9 (1984)
Appears in Arkham Shadow as an inmate at Blackgate and was serving time in Bludhaven. Is the one who dubs Batman’s undercover criminal identity “Matches” Malone. Turns out to be Chris Nakano working undercover. It is unclear if a Takeo Yamashiro actually exists in this universe.
Ra’s al Ghul and the League of Assassins - First appearance in Batman v1 #232 (1971)
His corpse is found in Arkham Asylum and later to be found missing. He appears in Arkham City. Arkham Knight reveals he survives the events of Arkham City and its up to the player to let him live or die.
Talia al Ghul - First appearance in Detective comics v1 #411 (1971)
Appears in Arkham City. Had a fling with Bruce in Metropolis at some point.
Nyssa Raatko - First appearance in Detective Comics v1 #783 (2003)
Talia’s sister. Considered the rational one of the family by Alfred in this universe. In Arkham Knight her fate, much like her father’s, is in the player’s hands
Sandra Wu-San as Shiva - First appearance in Richard Dragon, Kung-Fu Fighter #5 (1976)
Was one of Bruce’s training partners during his travels pre-Batman. Appears to challenge Batman in Arkham Origins to see if he is ready for Ra’s plans for him.
Kirigi - First appearance in Batman #431 (1989)
Appears in Arkham Origins in the Initiation maps where he trains Bruce. He also trained Shiva and Bronze Tiger. Unknown if he has ties to the League of Shadows.
Cyrus Gold as Solomon Grundy - First appearance in All-American Comics #61 (1944)
Appears in Arkham City and Arkham Origins: Blackgate. Penguin claims he found him under the Iceberg Lounge when he bought it. He was moved to a morgue in between the events of Arkham City and Arkham Knight only to come alive again. A shrine dedicated to him can be found in Arkham Knight.
Basil Karlo as Clayface - First appearance in Detective Comics v1 #40 (1940)
Is one of the few inmates of Arkham Asylum who was not set free and tries to trick Batman into releasing him. Appears in Arkham City to play the “role of a lifetime”. Dialogue from the Batman Experience tour in Suicide Squad: Kill the Justice League suggests that he died in his fight against Batman.
Julian Day as Calendar Man - First appearance in Detective Comics v1 #259 (1958)
His cell can be found in Arkham Asylum and appears in Arkham City and Arkham Origins. He makes a hidden appearance in front of Wayne Manor at the end of Arkham Knight. In this universe, he was scheduled to be executed during Batman’s early career as he is an unrepentant murderer.
Roman Sionis as Black Mask - First appearance in Batman v1 #386 (1985)
Appears at the beginning of Arkham City as he’s been recently recaptured. In Arkham Origins his identity and criminal empire as well as his industries have been hijacked by the Joker. He gets his mask burned to his face in Arkham Origins: Blackgate. Signs and logos for his numerous businesses can be seen throughout the Arkham Games. It is possible he or a double was killed by the Red Hood following Arkham Knight.
Lester Buchinsky as the Electrocutioner - First appearance in Detective Comics v1 #644 (1992)
One of the 8 assassins after Batman in Arkham Origins. Punked by Batman and killed by Joker.
Garfield Lynns as Firefly - First appearance in Detective Comics v1 #184 (1952)
Mentioned in a newspaper page in Arkham Asylum that he was on the loose. Appears in Arkham Origins and Arkham Knight, which states that it has been 10 years since his defeat by Batman before the evens of Arkham Knight.
Bane - First appearance in Batman: Vengeance of Bane #1 (1993)
Bane appears in Arkham Origins, Arkham Asylum, Arkham City and is mentioned in Arkham Knight and Arkham Origins: Blackgate. He eventually kicks his Venom and Titan addiction and goes to fight the drug cartels in Santa Prisca
Birdy Colossimo as Bird - First appearance in Batman: Vengeance of Bane #1 (1993)
Bane’s henchman appears in Arkham Origins. In this universe, he is from Santa Prisca like Bane instead of a random cellmate with Bane as in the comics. He reappears in Arkham Shadow as an inmate of Blackgate, awaiting Bane’s return. He is named Angel instead of Birdy, with the latter being a nickname.
Jervis Tetch as The Mad Hatter - First appearance in Batman v1 #49 (1948)
His tea set can be found in Arkham Asylum and he makes full appearances in Arkham City, Arkham Origins and Arkham Knight. His Alice fixation has devolved to a point where he kidnaps young men and dresses them up as Alice before killing them.
Copperhead - First appearance in The Brave and the Bold v1 #78 (1968)
Is a woman in this universe, though there are possibly more Copperheads out there. One of the 8 assassins after Batman in Arkham Origins. Takes on Batman in Sionis’ steel mill.
Mitchell Mayo as Condiment King - First appearance in Birds of Prey v1 #37 (2002)
Part of his gear can be seen in the Hall of Justice gallery in Suicide Squad: Kill the Justice League. Riddler mentions he and Killer Moth joined forces during the event of the game.
Deacon Blackfire - First appearance in Batman: The Cult #1 (1988)
Is mentioned in Arkham Origins and makes a full appearance in Arkham Knight. Unlike his comic counterpart, he is old and lanky.
Lonnie Machin as Anarky - First appearance in Detective Comics v1 #608 (1989)
Appears in Arkham Origins as slightly older and more misguided than his comic counterpart. Can be heard in Arkham Shadow calling Vic Sage’s radio show to rant about the elite. Said to have disappeared since being brought in by Batman.
Hugo Strange - First appearance in Detective Comics v1 #36 (1940)
An ally of Ra’s in this universe. His office can be found in Arkham Asylum and makes a full appearance in Arkham City. Shares his comic self’s desire to replace Batman.
Jason Woodrue - First appearance in The Atom v1 #1 (1962)
Mentioned in Ivy’s patient interview tape in Arkham Asylum as the one responsible for her condition. It is unknown if he ever became the Floronic Man in this universe.
Victor Fries as Mr. Freeze - First appearance in Batman v1 #121 (1959)
His cell can be found in Arkham Asylum and makes full appearances in Arkham Origins, Arkham City and Arkham Knight.
Nora Fries - First appearance in Batman: Mr. Freeze (1997)
She appears in her frozen state in Arkham Origins and Arkham City and makes a full appearance in Arkham Knight.
Ferris Boyle - First appearance in Batman: Mr. Freeze (1997)
The man responsible for the sorry state Freeze is in is mentioned by Freeze in his interview tapes with Hugo Strange. Makes a full appearance in the Arkham Origins DLC. He appears in Arkham Shadow as an inmate at Blackgate.
Firebug - First appearance in Batman v1 #318 (1979)
Mentioned by Militia soldiers in Arkham Knight. Who dons the mantle is unknown.
Mad Dog Hawkins - First appearance in Arkham Asylum: A Serious House on Serious Earth (1989)
Amadeus Arkham’s personal patient, whom he thought he had rehabilitated. Mad Dog murdered a woman with a pen and was beaten to death by Amadeus. His story is told in Arkham Asylum.
Drury Walker aka Cameron Van Cleer as Killer Moth - First appearance in Batman v1 #63 (1951)
One of his victims can be found in Arkham Asylum and is mentioned by a Bludhaven cop as someone they should watch out for. Is said to have been killed by Red Hood after Arkham Knight. A Second Killer Moth is mentioned in Suicide Squad: Kill the Justice League by Amanda Waller and later on Riddler mentions this second Killer Moth teamed up with Condiment King.
Anthony Delfini as Big Tony - First appearance in Harley Quinn v2 #1 (2014)
Said to have been killed by Red Hood in Arkham Knight
Clock King - First appearance in World's Finest v1 #111 (1960)
Said to have been killed by Red Hood in Arkham Knight. Unknown if its William Tockman or the second Clock King that was killed.
Dr. Aesop - First appearance in Detective Comics v1 #846 (2008)
Said to have been killed by Red Hood in Arkham Knight.
Black Glove - First appearance in Batman v1 #667 (2007)
Said to have been killed by Red Hood in Arkham Knight. It is unclear if the Black Glove is a single person or an organization in this universe.
Black Spider - First appearance in Detective Comics v1 #463 (1976)
Among the rejected assassins in Arkham Origins. He is mentioned to have been killed by Red Hood in Arkham Knight.
Tweedledee & Tweedledum - First appearance in Detective Comics v1 #74 (1943)
Their hats can be found on a see-saw near the gates of Arkham Asylum
Jenna Duffy as The Carpenter - First appearance in Detective Comics v1 #841 (2008)
Ads for her services can be found in Arkham Knight
Warren White as the Great White Shark - First appearance in Arkham Asylum: Living Hell #1 (2003)
While he never makes an appearance, his remains can be found in Arkham Asylum and Arkham Knight. His name is mentioned in an Arkham City Story.
Humphry Dumpler as Humpy Dumpty - First appearance in Arkham Asylum: Living Hell #1 (2003)
Toys he’s put back together can be found in Arkham Asylum
Prometheus - First appearance in New Year's Evil: Prometheus #1 (1998)
A wanted poster can be found in Arkham Asylum and Arkham City. In Suicide Squad: Kill the Justice League, Deadshot angrily responds to King Shark’s question regarding Brainiac’s potential weaknesses by asking if he looks like Prometheus, mentioning his helmet and his knowledge of the heroes’ and villains’ weaknesses.
Otis Flannegan as the Ratcatcher - First appearance in Detective Comics v1 #585 (1988)
His gear can be found in a vent in Arkham Asylum. An Arkham City story reveals that Penguin fed him to his shark, Tiny. He appears in Arkham Shadow. He once worked for Black Mask.
Amadeus Arkham - First appearance in Arkham Asylum: A Serious House on Serious Earth (1989)
Founder of Arkham Asylum. After a series of tragedies he lost his mind and was put into the asylum.
Elizabeth Arkham - First appearance in Arkham Asylum: A Serious House on Serious Earth (1989)
Amadeus’ mother. Her portrait and story can be found in Arkham Shadow.
Constance Arkham - First appearance in Arkham Asylum: A Serious Hourse on Serious Earth (1989)
Amadeus’ wife. Her portrait and story can be found in Arkham Shadow.
Harriet Arkham - First appearance in Arkham Asyulm: A Serious House on Serious Earth (1989)
Amadeus’ daughter. Her portrait and story can be found in Arkham Shadow.
Donnegan - First appearance in Showcase ‘94 #8
Appears in Arkham Shadow as an inmate at Blackgate. He is Arnold wesker’s cellmate and uses his puppet “Woody” to introduce himself and talk to Arnold.
Arnold Wesker as the Ventriloquist - First appearance in Detective Comics v1 #583 (1988)
His Tommy gun can be found in Arkham Asylum and is mentioned in Arkham City as having taken a cop hostage during the game’s events. He appears in Arkham Shadow as an inmate of Blackgate. At some point between Arkham City and Arkham Knight he dies and his criminal identity is taken by Peyton Riley.
Scarface - First appearance in Detective Comics v1 #583 (1988)
Ventriloquist’s puppet can be seen in Quincy Sharpe’s office. Joker takes a liking to it and plays with it. In Arkham City, copies of Scarface have been made for Joker to use and abuse.
Peyton Riley as the Ventriloquist - First appearance in Detective Comics v1 #827 (2007)
She is mentioned in the GCPD evidence room in Arkham Knight as the current Ventriloquist, implying Arnold Wesker’s death.
Sean Riley
Peyton’s father. His pub can be found in Arkham Origins. He can be heard Arkham Shadow talking to his wife about defending his bar.
Lyle Bolton as Lock-Up - First appearance in Robin v4 #24 (1996)
Appears in Batman: Arkham Shadow as the leader of the TYGER unit.
Jade Nguyen as Cheshire - First appearances in New Teen Titans v1 Annual #2 (1983)
Her name can be seen on the desk of Black Mask’s office in Arkham Origins as a rejected assassin for the hit on Batman.
David Cain - First appearances in Batman v1 #567 (1999)
His name can be seen on the desk of Black Mask’s office in Arkham Origins as a rejected assassin for the hit on Batman. Whether his daughter, Cassandra, exists is unknown.
Paul Sloan - First appearance in Detective Comics v1 #580 (1987)
Movie posters with his name can be found in Arkham Knight and you can hear two diners talking about his descent into becoming a murderer at the start of the game. It is unknown if he donned the villain identity of Charlatan.
Crazy Quilt - First Appearance in Batman v1 #316 (1979)
Mentioned by an inmate in Arkham City as the possible culprit of Two-Face’s defeat at the courthouse. It is unknown who took up the Crazy Quilt identity.
Matt Hagen, Preston Payne and Sondra Fuller - First appearances in Detective Comics v1 #298 (1961)/ Detective Comics v1 #477 (1978)/ Outsiders v1 #21 (1987)
Movie posters with their names can be found in Arkham Knight. It is unknown if they ever became Clayface in this universe.
The Tally Man - First appearance in Batman: Shadow of the Bat #19 (1993)/ Detective Comics v1 #818 (2006)
In the diner in the beginning of Arkham Knight, Tally Man is mentioned, though it is unknown if it is the first or the second Tally Man.
Sherman Fine as the Broker - First appearance in Gotham City Sirens #1 (2009)
Is mentioned in an Arkham City Story as the one who arranged the hideouts for Riddler, Zsasz, Great White Shark and the Joker.
Aaron Helzinger - First appearance in Batman: Shadow of the Bat #3 (1992)
His cell door can be found in Arkham Shadow, separated from the rest of Blackgate’s population. Whether he takes the supervillain title of Amygdala in this universe is unknown.
Starro - First appearance in The Brave and the Bold v1 #28 (1960)
One of his star spores makes an appearance in a secret room in the Batgirl DLC for Arkham Knight. He is mentioned by Lois Lane during an interview with Elseworlds Lex Luthor in Suicide Squad: Kill the Justice League.
Arthur Brown as the Clue Master - First appearance in Detective Comics v1 #351 (1966)
Mentioned by a Militia soldier when discussing the various super villains.
Victor Zsasz - First appearance in Batman: Shadow of the Bat #1 (1992)
Appears in Arkham Asylum and Arkham City. Shows up in security footage in Arkham Knight.
Edward Burke - First appearance in Detective Comics v1 #296 (1961)
He built the Seagate Amusement Park and had a terminally ill daughter. His tragic tale can be discovered in the Batgirl DLC for Arkham Knight. Never becomes the villain Planet Master in this universe.
Polka-Dot Man - First appearance in Detective Comics v1 #300 (1962)
A torn piece of his costume can be seen in the Hall of Justice Gallery in Suicide Squad: Kill the Justice League .
Werner Vertigo as Count Vertigo - First appearance in World's Finest v1 #251 (1978)
Mentioned in a case file in Arkham Origins: Blackgate and his cell door can be seen in Arkham Shadow.
Burt Weston - First appearance in Batman v1 #395 (1986)
His name is seen on movie posters for a Solomon Grundy movie in Arkham Knight. It’s unclear if he assumes the identity of Film Freak in this universe.
Dr. Alex Sartorius - First appearance in Detective Comics v1 #469 (1977)
A former friend and business partner of Simon Stagg in this universe. He grew increasingly disgusted with Stagg’s greed and lack of ethics. Recordings of his confessions can be found in Arkham Knight. Never becomes the villain Doctor Phosphorus in this universe.
Roland & Mark Desmond - First appearance in Detective Comics v1 #345 (1965)
Their pharmacy can be found in Arkham Knight. If either has turned themselves into Blockbuster is unknown.
Guillermo Barrera as Brutale - First appearance in Nightwing v2 #22 (1998)
Mentioned by Militia soldiers in Arkham Knight.
Thaddeus Ryerstad as Nite-Wing - First appearance in Nightwing v2 #8 (1997)
A wanted poster for Nite-Wing can be seen in the Bludhaven Police Department offices in Harley’s episode in Arkham Knight.
Boone as Shrike - First appearance in Nightwing Secret Files and Origins #1 (1999)
Appears in Arkham Shadow as one of the Rat King’s followers attempting to take out Jim Gordon and Harvey Dent. He is given the full name Boone Carver in the Arkhamverse.
Delmore Redhorn - First appearance in Nightwing v2 #1 (1996)
The Bludhaven chief of police is seen quoted in one of the newspapers detailing how Gothamites are migrating to Bludhaven over the “Rats” problem in Arkham Shadow.
Colleen Edwards - First appearance in Nightwing v4 #52 (2019)
The Bludhaven police detective is seen quoted in one of the newspapers detailing how Gothamites are migrating to Bludhaven over the “Rats” problem in Arkham Shadow.
Injustice Gang - First appearance in Justice League of America v1 #111 (1974)
Seen in a newspaper page in Arkham Asylum. Who the members are is unknown. They’ve been active long before the Justice League was formed.
The Legion of Doom - First appearance in Extreme Justice #16 (1996)
Captain Boomerang mentions being ‘this close’ to becoming a member in Suicide Squad: Kill the Justice League. Who the actual members were is unknown.
Brainiac - First appearance in Action Comics v1 #242 (1958)
Appears in Suicide Squad: Kill the Justice League.
Lex Luthor - First appearance in Superman v1 #4 (1940)
Leaves a message on Bruce Wayne’s answering machine in Arkham Knight. Is mentioned by militia grunts to be running his presidential campaign during the events of Arkham Knight. Appears in Suicide Squad: Kill the Justice League.
Lexcorp - First appearance in Superman v1 #416 (1986)
Signs for Lexcorp can be spotted in Arkham Knight and makes an appearance in Suicide Squad: Kill the Justice League.
Big Belly Burger - First appearance in Adventures of Superman v1 #441 (1988)
Signs and logos can be found in Arkham Origins of this LexCorp subsidiary.
Koul-Brau
Signs and logos can be found in Arkham Origins of this LexCorp subsidiary.
Hell's Gate Disposal Services
Another LexCorp subsidiary. Signs can be found in Arkham Origins and Two-Face uses the vehicles to stage his bank robberies in Arkham Knight.
Edna Luthor - First appearance in Superman: Y2K #1 (2000)
A statue dedicated to her can be found in Suicide Squad: Kill the Justice League.
Sydney Happersen - First appearance in Superman v2 #2 (1987)
Appears in Suicide Squad: Kill the Justice League. Whether he antagonized Superman under Luthor’s orders in this verse is unknown.
Bruno Manheim - First appearance in Superman’s Pal, Jimmy Olsen v1 #139 (1971)
His name can be spotted on a newspaper headline in Clark Kent’s office in Suicide Squad: Kill the Justice League.
Intergang - First appearance in Superman’s Pal, Jimmy Olsen v1 #133 (1970)
They are mentioned in the same headline as Manheim in Suicide Squad: Kill the Justice League.
Bizarro - First appearance in Superboy v1 #68 (1958).
A rock with “Bizarro #1″ can be seen in the Hall of Justice gallery in Suicide Squad: Kill the Justice League.
Winslow Schott as Toyman - First appearance in Action Comics v1 #64 (1943)
A Toyman is mentioned in a case file to have died due to an explosion that set off the events of Arkham Origins: Blackgate. Another Toyman is mentioned by one of Harley’s thugs as a possible buyer for Batman’s belt in Arkham City. It is possible that the Toyman that died was Jack Nimball and that Winslow Schott was the potential buyer. Schott’s toy shop is used as a hideout by the remnants of Riddler’s gang at the end of Arkham Knight. More of his stores can be seen in Metropolis in Suicide Squad: Kill the Justice League. A newspaper clipping can be found with the headline “THE TOYMAN: Winslow Schott Caught”. In Arkham Shadow his cell door can be found right outside Harleen’s office in Blackgate.
Hiro Okamura as Toyman - First appearance in Superman v2 #177 (2002)
Appears in Suicide Squad: Kill the Justice League. Whether he was the potential buyer of Batman’s belt is unknown. Given that he seemed to have recently taken on the Toyman moniker, this seems unlikely.
Leslie Willis - First appearance in Action Comics v1 #835 (2006)
Posters for her radio show can be seein in Suicide Squad: Kill the Justice League. If she ever became the villain Livewire is unknown.
Marisol Leone - First appearance in Action Comics v1 #1006 (2019)
Her name can be spotted in the memorial site in Suicide Squad: Kill the Justice League.
Robinson Goode as the Red Cloud - First appearance in DC Nation v2 #0 (2018)
Her name can be seen in the memorial site in Suicide Squad: Kill the Justice League.
Dr. Glory - First appearance in Young Justice v3 #3 (2019)
Her name can be seen in the memorial site in Suicide Squad: Kill the Justice League.
Carl Draper - First appearance in Superman v1 #331 (1979)
Is mentioned as the man responsible for the construction of Blackgate prison. Never became the villain Master Jailer in this universe. His portrait can be seen in the Blackgate reading room.
Veronica Cale & Leslie Anderson - First appearance in Wonder Woman v2 #196 (2003)
Signs for their company Cale-Anderson Pharmaceuticals can be seen in Arkham Knight.
Dr. Poison - First appearance in Sensation Comics #2 (1942)
A vial of her toxins can be seen in the Hall of Justice Gallery in Suicide Squad: Kill the Justice League.
Sinestro & the Sinestro corps - First appearance in Green Lantern v2 #7 (1967)/Green Lantern v4 #10 (2006)
Mentioned by Batman in his recording in Suicide Squad: Kill the Justice League.
Kobra cult - First appearance in Kobra #1 (1976)
Lois Lane mentions the cult when discussing who could be fighting Brainiac’s forces in Suicide Squad: Kill the Justice League.
Dr. Sivana - First appearance in Whiz Comics #2 (1940)
Captain Boomerang uses Sivana’s Speed Force Gauntlet in Suicide Squad: Kill the Justice League. Apparently once tried using the Speed Force in one of his plots.
Merlyn - First appearance in Justice League of America v1 #94 (1971)
His arrow can be seen in the Hall of Justice Gallery in Suicide Squad: Kill the Justice League.
Gorilla Grodd - First appearance in The Flash v1 #106 (1959)
His name can be seen on a cage in the Ryker Heights airship. Lois Lane mentions that Superman and Flash teamed up to defeat him at one point in Suicide Squad: Kill the Justice League.
Leonard Snart as Captain Cold - First appearance in Showcase #8 (1957)
Superman calls Captain Boomerang a “poor man’s Captain Cold” in Suicide Squad: Kill the Justice League.
Roscoe Dillon as the Top - First appearance in The Flash v1 #122 (1961)
Mentioned by Boomerang when talking about not wanting to piss off the Rogues by telling them he killed Flash.
Mirror Master - First appearance in The Flash v1 #105 (1959)
Mentioned by Boomerang when talking about not wanting to piss off the Rogues by telling them he killed Flash. It is unknown if Sam Scudder or Evan McCulloch wears the title.
Hartley Rathaway as the Pied Piper - First appearance in The Flash v1 #106 (1959)
Pied Piper is mentioned by Boomerang to have once tangled with Superman. According to Boomer, Piper’s failed attempt led to him going straight.
There, I think that’s all of them. I originally wanted to add images for each character, but then the post would be way, way too long. It’s already too long. Hope I didn’t forget anyone.
EDIT: Added first comic appearances
EDIT2: Updated the list and reorganized it a bit.s
