Potential Character for Mrs. Kelsey and Tumblr 10/22/2025:
Detective Danny "Danno" Williams, Hawaii Five-O’s Second-in-Command:
Unlike Steve, who is typically calm and in control, Danny is nearly always displaying one emotion or another. The most obvious is anger, as he possesses a very hot-headed nature with a vicious temper to match. He’s also the most outspoken of the team and quite possibly the whole H50 Force and HPD, regardless of where he is and who’s around to hear him.
Despite his often off-putting, and at times offensive, attitude, Danny is also one of the most openly affectionate characters and fiercely loyal to his friends and family.
Of the four main members of the task force, Danny is the most vocal. As his partner and, as Danny calls him, an animal and Neanderthal, Steve is the person most often on the receiving end of one of Danny’s long-winded explanations of what is wrong with the current situation, as Danny expresses a deep dislike for Steve’s methods, such as going into a house without back-up, and isn’t afraid to tell him so as loudly as he pleases.
Despite his abrasive personality, both Steve and Meka cite Danny as a great cop with good instincts. He is also shown to comfort the victim/victim’s family when they are in distress, presumably because Danny is a father.
Although Danny moved to Hawaii, he only did so to stay close to his daughter, Grace, whom he loves dearly. He also spends most of the time trying to impress her or worrying about her safety.
In the episode, E Malama (episode), Danny threatened to kill a business man if he ever endangered Grace again after she and Rachel were victims of a carjacking.
At the end of Loa Aloha (episode) when he confronts his brother about his crimes, Danny chose to say goodbye rather than shoot him.
Danny was shown to be fiercely protective of his family as seen in the episode, E Malama (episode) where he threatened to kill a businessman who had unknowingly endangered the lives of Danny’s ex-wife, Rachel and daughter, Grace and in a deleted scene from that same episode, Danny was seen telling Stan that if he ever put her (Grace) in danger again, then Stan would find that the scariest criminal in the world is a cop who didn't care anymore, hinting that if Grace was ever hurt again or presumably even killed, then Danny would go off the rails altogether.
In the Season 2 episode, Mai Ka Wa Kahiko (episode), Danny’s dark side emerged with a vengeance where after shooting his ex-wife’s husband in the shoulder, Danny shot his ex-partner in the right kneecap, much to the horror of Steve, Kono and Chin and very calmly yet coldly threatened to kill Peterson by shooting him in the head if he did not tell Danny where Grace was. This suggests that Danny is willing to do anything to guard Grace, maybe even resort to killing or threatening someone to ensure her safety.
Danny’s darker side again emerged in the Season 3 episode, Ho'opio (episode) where he beat up two suspects during the investigation concerning the murder of a young girl and the subsequent disappearance of another, presumably due to the fact that the girls bore a striking resemblance to Grace.
During the interrogation of one suspect, Danny knocked the suspect off his chair, forcing Steve to physically restrain him while during the interrogating of a man and his wife who the team believed were the kidnappers responsible, Danny later hit the man once, prompting Steve to ask for Danny's two badges albeit temporarily. Danny later gave them to Steve and proceeded to beat the man while Steve calmly walked out of the house as the punching was heard.
Much to Steve’s confusion, Danny despises Hawaii, calling it a “pineapple-infested hell hole.” This point is further proven by the way that he does not care at all what the locals think about him wearing a tie. Danny does not like the water either; it is hinted that Danny does not like the water because he cannot swim.
However, halfway through Season One, Danny is seen trying to surf. In Lana I Ka Moana (episode), Danny tells Steve that he actually used to love the ocean, but started hating it when his best friend Billy died on the ocean while swimming towards Danny to help him.
Danny actually did dive into the ocean once during a case which left Steve greatly impressed and when Steve remarked “Book ‘em, Danno”, Danny replied, “Book me a towel”.
Although Danny denies it, Steve observes that Danny likes Hawaii. When Danny first met Steve, it seemed that Danny hated Steve more than Hawaii itself. Danny also didn’t like it when Steve kept calling him “Danno.” Likewise, Danny mockingly calls Steve “Steven.” Even though Danny tries to hide it, they have become friends, and deeply care about one another, and completely trust each other. Danny also expresses concern about Steve’s behavior, as he believes that Steve needs professional help for his inhumane behavior and attitude.
Like the rest of Five-0, Danny is shown to have complete loyalty to Steve.
Since Heihei (episode), Danny’s relationship with Rachel is less strained than it was in the beginning of the series, especially in Loa Aloha (episode). Danny is shown to dislike Stan Edwards, Rachel’s husband.
Danny appears to have claustrophobia. He has panic attacks when confined to a small space.
We both are… different than those around us, for the most part (Autistic people don’t exactly fit into mainstream society, after all, while Danny basically uprooted his life to go to a place he mostly despises simply to be with his daughter). In addition, sometimes these differences make us frustrated. I usually try to listen to stuff on my phone to tolerate frustrating people and situations.
Danny isn’t a character that comes across as easily likeable
Change can be difficult for certain people, so much so that they may resist the urge to embrace their environment
Rather than seeing the good in the new place they are at, they find ways to think negatively about the situation
Even when deep down they don’t mind it so much
For Danny, “you can’t judge a book by its cover” makes sense
While he might be abrasive and resistant to change, he still is a good person deep down
Even though that might not be easily detectable, the people who know him well know this about his personality
Sometimes we are expected to meet the “social expectations” of others
For those with autism, social interactions/ environments can be overwhelming and hard to process
In addition to having difficulty regulating emotions, getting along with others requires more work
Despite how loyal you are or how much you appreciate your social supports, it doesn’t always come naturally for you to show this thru non-verbal behaviors