Grinds his teeth a lot. Fan of the "Kubrick stare", usually while grinning creepily. Makes a low throaty growling sound at random times.
voiced by: Ron Perlman
Usually acts calm, but sometimes starts YELLING FOR NO CONCEIVABLE REASON. Often cackles while doing so, even if he's angry.
voiced by: Mark Hamill
Occasionally finishes talking much quieter than when he starts, then lashes out if the person listening couldn't hear him.
voiced by: Kevin Michael Richardson
Has a tendency to use big words where simpler ones would work. Does this intentionally to underscore his intelligence and to annoy everyone around him.
voiced by: Steve Blum
Fond of the Batman tactic of disappearing at the drop of a hat. Doesn't talk much. Never faces away from anyone if he can help it.
voiced by: Clancy Brown
Always stares directly ahead, never moving his eyes, only turning his head to look other directions. Makes unnaturally smooth and fluid movements.
Voiced by: Steve Buscemi
Head always tilted to one side or the other, though not from a physical deformity. Makes wild eye movements. Constantly moving his mouth like he's talking, even when he's not.
voiced by: Gilbert Gottfried