Naruto:
火影忍者 Uzumaki - ADHD (Attention Deficit Hyperactive Disorder)
Sasuke Uchiha - Mood Disorder
Death Note:
Light Yagami - NPD (Narcissistic Personality Disorder)
Light Yagami - Clinical psychopathy
l - Asperger's Syndrome
l - Marfan's Syndrome
Near - Albino
Soul Eater:
Blackstar - ADHD (Attention Deficit Hyperactive Disorder)
Full House:
Daniel 'Danny' Tanner - OCD (Obsessive Compulsive Disorder)
Teen Titans
Slade - Clinical psychopathy (yes, Robin called him a psychopath a bunch of times, but it was never technically confirmed.)
The Big Bang Theory
Sheldon Cooper - OCD (Obsessive Compulsive Disorder)

Hope 你 liked this! If 你 have any 更多 ideas, tell me in the 评论 and I might add them.