Hazbin Hotel's Death headcanons
Being implied to have been the first human to die in the Hellaverse according to Sera.
If they're following Biblical lore it means he died from exhaustion but in this iteration, he died much, much earlier than Eve who passed away at 930 (giving her enough kids to populate Earth; Cain and Abel confirmed and arguably their siblings like Seth, Aclima, Norea and Azura, unsure if they're gonna give the Eden couple 50 kids like in the original story)
Or Adam wasn't able to survive Primordial Earth, the harsh conditions leading to his death either by animals attacking him or catching a disease.
Accident on a rave/party she threw for being too wild, to the point of destroying everything where she went. Like a dinosaur wrecking havoc.
Prick´ss cowboy aesthetic and liking for fighting inplies he was a corrupt cowboy so he might have died in a fight he started by colliding with a cactus as he bled out. Or he could have died from dehydration unable to find a cactus with water and his death reflects that as a way to torment him.
Meanwhile, Hatchet´s name and his weapon of choice (daggers) could be a good indicator; my guess is that he died in a fight with an axe or another form of meelee weapon attacking him from behind, crushing vital organs and why he has that tail.
His whole orchestra aesthetic and having a flaming skull as head could indicate he died in a fire that burnt whatever orchestra he performed in and it melted his skin off leaving only the bone.
He's an arachnid insect like demon who's very sneaky and speaks in old English dialect.
Assuming he comes from the 1600s is very possible he died due to the plague or a disease transmitted or just stung with venom by a spider which made his body go from a healthy shape into the skeletical physique he's got.
Her whole theme is centered around ballet and this art was known not just for how graceful it was but for hiding a darker nature (aka prostitution) which if we apply to Carmilla, it'd mean she most certainly was living two lifes with one focused on her job; my best guess would have been running a black market, as we've seen how well expierenced she is at her business.
If we take the theory that she's from Spain, im guessing possible deaths for her would be around late 1800's and/or early 1900's because of the highly unstable political climate of the country and Picasso's association with Russian Ballet as a possible inspiration for her design theme.
Her family was also in this business so I'm guessing them having similar deaths to her like getting caught and shot dead or perphans following darker fates of the characters they were inspired by; Odette out of either a broken heart or suicide and Clara by being burnt alive.
Considering they're a group, it wouldn't be shocking they followed a similar pattern with Vox's death: Craving more but not stopping when they should have.
Moths search for the light, uncaring if it hurts or kills them.
My guess is that in trying to get the most gratification or satisfaction, he died. Given his smoke themed powers my guess is intoxication coming from a life long addiction to tobbacco that affected his lungs or perphans smoke inhalation or just plain drugs in general, not unlike Angel dying from an overdose. There's also the possiblity of him having caught an STD and not realizing until too late or just unable to treat it when he needed.
We know she´s a doll demon and she's not above using misinformation to bring her rivals down and, if the situation calls for it, she's going to throw hands as we saw with Charlie, her wanting to skin Carmilla and squash Niffty like a bug.
Either one of her social media witch hunt's many victims snapped and pushed her off a high building to her death and it destroyed her joints.
Or, assuming a part of her pilot concept is still there, she was crazy enough to mingle with the wrong people to feed her drug obsession and it ended badly as in getting dismembered.
We have canonical deaths for Alastor (shot to the head) and Angel (overdose) on top of Charlie and Vaggie never truly dying due to being Hellborn and Heavenborn so we have to theorize for the others.
Given her personality and toxic habits; she bit more than she could chew which translated to dealing with the wrong people and, without Alastor there to fix her problems, this put her in the grave (I mean, the teeth pattern of her dress and this artwork depicting her with wolves)
The 50s were known for dangerous beauty standards that women had to go through in order to be pretty enough to marry someone. Like makeup with continents that had negative effect on the skin besides the use of drugs like anfetamines to get housework done quicker. And lobotomies were still practiced in that era.
Cyclops in mythology are known to represent narrowness or an intense, singular focus sometimes to the point of raw, untame nature and strength and savagery contrasting civilization.
Combine the pressure to find a husband and the possible mythological inspiration and you get someone like Niffty.
Also the 50s weren't a good time if you were Asian. So she probably expierenced discrimination like Alastor did in his lifetime. Which combined with her being a woman meant she had to work even harder to please society. She must have felt like an insect that didn't belong.
But it wasn't enough and her husband cheated on her which caused Niffty a mental breakdown where she might have killed her husband and misstress. But she wasn't caught why? Well, her magic is themed around stitches and she takes good care of messes as a maid.
Niffty likes bad boys and being forced. So my guess is that she tried to find another one that at least corresponded her feelings but it always ended the same. Obviously the police caught to the disappearences and shot her dead.
However there's also the possiblity that the spot/dot pattern of her clothes might have been a consequence of her obsessing with looking perfect for a possible partner which injured her health drastically due to the harmfull cosmetics on her skin which caused her to throw up blood.
I dont really have an explanation for the camera thing; itcould be just her being camera shy to an extreme, prior bad expierences when being filmed or just an Alastor thing. However, there's the fact she likes porn and writes fanfiction which combined with her liking towards being forced might indicate something darker.
So far, what we know about his life is the fact he lived in Las Vegas in a casino where he watched magic shows and was exposed to jazz music from a young age, playing the saxophone in lounge bars when alive.
Why a cat? The term can be used for people that like or play jazz but these critters are known for their cunning and cold demeanor but soft interior.
He did say he lost the hability to love years ago in the pilot and its hinted again in Love in a bottle with his line "booze doesn't screw or fucks you over"
He grew up learning how to cheat through life and can detect when someone is lying, developed a poker face and is surprisingly patient. This might have affected his love life when it came to detect if his partners were being honest or not and with a troublesome love life he dove right into drinking to cope.
He could have died from alcohol poisoning or a past lover betrayed him like say getting Husk intoxicated enough not to analize his surroundings and took advantage of that by killing him. Maybe by pushing him off a roof or high building so people would assume it was suicide or that he was so drunk he didn't realize where he went or stabbing him in the heart after sex; with Husk's head on the clouds or him in Cloud 9 hence the wings as a cruel reminder of that.
Either died from a work related incident or he took his own life out of guilt for the murders he allowed to happen.
The snake theme could be for how he snuck around quietly, letting the murders take place but theres also the possiblity of Pen having been contaminated by snake poison although I find this unlikely considering how much of a shut in he was in life and as far as we know Jack the Ripper never interacted with him after the assasinations.
Bomb related incident where one of her bombs didn't activate at the right time and it blew up on her face. Literally. Think of Jinx in ep 9 where she blows herself up and we see her skin and muscles tearing open and her bones breaking.
Again cyclops are known to have one purpose in life hence the singular eye so its very possible, given her rebellious nature and having lived between the 60 to the 80's, that she might have wanted to rebel against the systems that kept pushing her down as a woman. But in the wrong way, with Cherri going as far as to be classified as a terrorist.
Back in the pilot era, his death was at the Titanic.
Perphans some part of it remains there with his death being a sea/fish related incident with him drowning or he could have tampered with aquatic life for his experiments which didn't work out for him in the end.
And not released yet buuuut...
She's a hyena which symbolize things such as violence/savagery, greed/theft and caos so it fits with her rebellious personality and might represent the kind of life she had.
Being the youngest sinner in the show, dying at 19 in the 90's; aka a decade with a rise of street gangs whose activities included violence and at times drug trafficking or distribution and hyenas are pack animals so its very likely she came from a troubled home and joined a street gang, participating in crimes perphans not to extremes of killing but commiting physical assault and theft.
Her death could have been due to her gang betraying her when she needed them most (a territorial fight that ended badly or they killed her for money) or a dog related incident a la Alastor. (But really though it has to suck that your body is telling you that you're a literal bitch).