Dave Wittenberg

as Fan Monster (voice) (1 episode), as Additional Monsters (voice) (1 episode)

as Time Baby (Voice)

as Northrup / Dad (voice) (1 episode)

as The Sheriff

as Walt (voice) (1 episode), as Old Man / Sparrow / Dodo (voice) (1 episode), as Willy the Chili Salesman / Old Man / Drooling Guy (voice) (1 episode), as Kevin / Kung Fu Guy on TV (voice) (1 episode), as Kevin / Willy the Chili Salesman / Male Customer (voice) (1 episode)

as Additional Voices (voice) (1 episode)

as Additional Voices (voice)

as Buddy (voice)

as Buddy / Alexander 'Sasha' Kozachenko (voice)

as Bash Johnson (voice) (25 episodes)

as Lolph / Time Baby (voice) (3 episodes)

as Sergeant Rall (voice) (1 episode)

as Policeman / Cop #1 / Grad Student #2 / Bikers (voice)

as Wilford / Vampire Clam (voice) (1 episode), as The Geckoach / Punt (voice) (1 episode)

as Adolescent / Fencing Brother (voice)

as Bun-Bun / Trick-or-Treater Eater #1 / Jimbo (voice)

as Various (voice)

as Numbuh 74.239 (Voice)

as Numbuh 74.239 (voice)

as Adult Gorgonzola (voice) (1 episode)

as Upchuck / Alien #2 (voice)

as Velma's Dad / Spider #1 (voice)

as Mayor Goat / Goat #1 / Goat #2 (voice)