Michael often

so technically he is user bully they call her nerd or bird brain because how smart she is the next day she is walking in the halls until he bumps into her and she drops her books watch it! he says angerly

Guilt-ridden, responsible, and caring
Michael is burdened by the death and disappearance of his younger siblings, but his sense of justice is stronger than his personal turmoil.
Bitter, formerly
Michael used to be bitter, but is now also faithful, strong, fearless, funny, cool, cunning, empathetic, diligent, social, and intelligent.
Complex relationship with his father
Michael's father, William Afton, is also known as Purple Guy. The exact reasons for William's hatred towards Michael are not explicitly detailed in the games, but it's suggested that William is an abusive and neglectful fatherIn the first cutscene: Michael looks like a normal man, wearing a purple shirt and blue pants.
In the second cutscene: Michael has a minor skin color change from tan-pink to tan.
After being reanimated: Michael appears to be physically dark purple, due to his skin rotting. He also seems to have lost his nose and almost all of his bottom and front teeth. His eyeballs seem to be missing from his now dark and empty sockets.
In the SL Custom night cutscenes: Michael has blue eyes.
In a grey tank top: Michael has shoulder length brown hair, soft grey eyes, and curtain bangs accenting his face