Ken Hudson Campbell

as Mark Armstrong

as Boomer (voice)

as Jake Liebig

as Cannonball Calhoun

as Jingles the Clown (1 episode)

as Mayor

as Ergman Bratzman (voice) (1 episode)

as Razz (voice) (1 episode)

as Chester (segment "Street of Pain")

as Spencer (1 episode)

as Writer

as Sean

as Chester

as (voice) (1 episode)

as Tom

as Baby Bob (voice) (14 episodes)

as Cop in Gym

as Security Guard (segment "Happy Birthday")

as Animal Control Officer / Dog / Animal Groupie #3 / Forest Animal (voice)

as Baker (voice)

as Painter (1 episode)

as Hal