Donnie, Mikey, Leo and Raph are brothers. Leo and Donnie are twins, Mikey is the youngest and Raph is the oldest. Raph is a gentle giant with repressed anger, and he's overprotective. Leo can't take anything seriously, and he jokes around too much. He's the leader. Donnie is an autistic turtle. He's the genius of the team, knowing everything a put science and mechanics. He's also really distant and sarcastic. Mikey is a hyperactive jokester with ADHD. He's really cheery and loves arts and crafts