Silent, But Deadly: Crispin Glover of Charlie's Angels
The "Creepy Thin Man" lived up to his namesake, taunting the Angels as an adversary of the first film and re-appearing even more creepily in the sequel, portrayed more as an anti-hero and love interest of Drew Barrymore.
An expert fighter and talented swashbuckler, CTM managed off a few disturbing screams and attempted speaking, before quickly meeting the end of the main antagonist's sword. Whatever morality the character clung to, one thing is certain: George McFly would not have approved.