Sam Gladiator

Sam Gladiator is the main protagonist of the Yandere High School series, and the perspective we see the most of.

Appearance
Sam is part rabbit and has tall, white ears and a patch of white hair on the back of his head. He also supposedly has a rabbit tail which he said he tucks in his pants. He has brown, curly hair and dark eyes, he also claims to be 5'9".

In Yandere High School, Sam is mostly seen in the boy's school uniform, which includes a light brown jacket, a white button-down shirt with a red tie, and jeans. His gym uniform includes a white t-shirt with a blue trim, and plain blue shorts.

In Tokyo Soul, Sam's school uniform is a blue jacket with a white button-down shirt and black tie, and black pants to complete the look.

For his casual attire, Sam wears a white t-shirt on top of a blue, long-sleeve shirt. He also wears light blue jeans and completes the look with pink tennis shoes.

Personality
When the series first starts, Sam appears to be extremely shy, hiding away from the class and hesitating when presenting. He also seems to have a childlike innocence to him as he keeps his childhood teddy bear, Mr. SnuggleMuffins, with him at all times.

However, as the series progresses the audience is introduced to a more sadistic, manipulative side of Sam. After forcing Grian to dress as Taurtis, after Sam stabs Taurtis, he quickly becomes delusional. Sam seems to have trouble telling the difference between reality and fiction, and often ends up believing his own lies, like that Grian is Taurtis. After being told the truth about Grian, he goes into a paranoid fit and claims that everyone but him is crazy and going insane, he runs away after being shot with sedatives and makes his way to the prison, where he locks himself up in a cell and curls up in a corner chanting Taurtis' name.

In Tokyo Soul, Sam claims that he has a lack of empathy when others die, implying that he has little to no empathy, which could suggest some sort of neurodivergency that features potential symptoms of low empathy

Taurtis
Sam and Taurtis have been best friends since they were 5, and have assumedly been friends throughout. They seem to get along most times, though Taurtis doesn't like Sam's aggressive behavior. Sam appears to be obsessed with Taurtis and slowly goes insane whenever Taurtis is not around. Sam has a strange attachment towards Taurtis and stays with him the most he can and is actively upset whenever he is away.

Grian
Sam and Grian have been friends since Sam was 5 and Grian was 7. We can assume that they stayed in touch despite Grian living in England, as he joins the series later on as a friend of Sam's. Despite being close friends, Sam is noticeably cruel towards Grian, deciding to constantly blame Grian for anything bad that happens, a form of gaslighting. Sam constantly berates Grian and manipulates him, and yet they both claim to be good friends, though at times Grian has expressed that he hates Sam and that he believes he is one of the worst people in the world. Sam once trapped Grian in a basement where he seemingly wasn't planning on letting him out, and during that time he dressed him up as Princess Leia from Star Wars to match his Han Solo costume.

Yuki
For most of the series, Yuki expressed disinterest in Sam in favor of Taurtis. However, she becomes interested when Sam expresses admiration for her and invites her to prom with him, despite already planning to go with Taurtis. However, as soon as Taurtis loses interest in Yuki, Sam does as well, claiming that he was only into her because Taurtis was. He breaks up with Yuki at the prom, to which she goes on a manic rampage and pulls out a knife. Later that night, she hunts for Sam in a fit of rage that end's with her pulling out a common trope of abuse by blaming her actions on just having too much to drink getting Sam to forgive her. The next day, Yuki gets her father, Karu, to threaten Sam into dating Yuki, which makes them start dating. Sam appears to be an enabler for Yuki as he enjoys having a bodyguard who is willing to pull a knife out on anyone. As the series progresses, Sam starts to be more disturbed by her, but still hesitant to break-up with her. He eventually does breaks up with her in the finale after Yuki kills and threatens several people, causing Yuki to attempt to kill him then when that fails, commit suicide.

Sookie
Sam developed a crush on Sookie after she was looking at him in lunch, to which he threw her a carrot and ran. It started out as an innocent crush, but quickly deteriorates into an obsession, with Sam developing an idea of Sookie that isn't real. Sookie is noticeably uncomfortable around Sam and actively does not like him, though she tries to be nice about it. Sam often smells Sookie and steals pieces of her hair without her knowing. When Sookie finally rejects Sam by saying that she is a lesbian, Sam continues to pursue her, but this time as a girl named Samantha. Sookie appears to like Samantha more than Sam, though still not romantic as she is with Soul, but she accepts the flowers that "she" gives her and thanks "her". However, once it is revealed that Samantha was actually Sam this whole time, Sookie refuses to talk to Sam and we don't see them interact for the rest of the season.

Invader
At the start of the series Invader expresses a dislike for Sam, however she quickly develops a crush on him after "saving" him from the pool and performing cpr on him. They start "dating" at Invader's and Taurtis' insistence. They went on a date where Sam treated her poorly, yet she seemed to only become more attached to him. Sam later broke up with Invader which seemed to break her heart, and she was resentful towards Sam afterwards. However, she quickly became more obsessed with him as time went on and became desperate for his affection. She made a "senpai shrine" dedicated to Sam where she stole items from Sam, including vials of his own saliva. Throughout the series, Sam has expressed his hatred for Invader, mostly because of her beard.

Dom
Dom started off as a bully towards Sam in the beginning of the series, as he was jealous of Sam because he used to date Invader. He actively antagonized Sam throughout the series. However, Dom expressed attraction towards Sam when he was dressed in Salex's clothes and kissed him. When Sam told him that it was him all along, Dom went into a depression and was a lot nicer towards Sam, while Sam took the role of bully towards Dom. Along the way Dom and Sam became friends after Dom is kicked out of the house and seems to have mellowed a lot, as they hug in the season 1 finale. In Tokyo Soul, they live together and are on good terms.

Trivia

 * Despite having dark brown eyes, Sam is often drawn with red eyes, either as a nod to his insanity, or because he may be an albino rabbit
 * Sam is the only character to appear in every episode
 * Sam used to have a unicorn imaginary friends
 * Sam used to play with Barbie dolls, pretending that they were his girlfriends
 * Sam never had any friends until Taurtis
 * Sam used to be a part of track in school
 * Sam has a tail that he supposedly tucks in his pants
 * Sam is known to be hated by 45% of the other characters in every series
 * Sam has a childhood teddy bear called Mr. SnuggleMuffins
 * Sam's favorite colors are white and blue
 * Sam's favorite food is carrots, most likely because he is part rabbit
 * Sam has mentioned having been in an insane asylum in one part of his life