Sweet Tooth

Marcus Kane was a family man, worked as an ice cream salesman, handing out treats from his future demolition vehicle. However, a small part of him was filled with resentment and hatred for his mundane life, eventually manifesting as a split personality, called "Needles".

Needles eventually drove Marcus insane. He created a horrific clown mask and set his head ablaze, renaming himself Sweet Tooth. Sweet Tooth fashioned his ice cream truck into a war machine and became a serial killer, beginning with his family. He was placed in an insane asylum, but eventually escaped.

Sweet Tooth entered the Twisted Metal contest at the behest of its founder, Calypso, who offered the victor ANY prize they desired...

Video Game Villains
Sweet Tooth was an Alternate, replacing the tying M. Bison and Dracula in round 2. There, he almost managed to defeat Sephiroth, but was eventually overcome.