William Callaway

as ZO (voice) (2 episodes)

as Rumpley (voice) (39 episodes)

as Comet Guy (voice) (2 episodes), as Man in Bank / Man in Crowd (voice) (1 episode)

as Slowpoke Antonio (voice) (5 episodes)

as Combot Model MF842 (Ulysses) (voice)

as (voices)

as Clumsy Smurf / Rich Man (voice)

as Dad / Trapper (voice)

as Billy Bob Scroggins / Beaureguard / Horseman / Ape (voice)

as Thor (voice) (1 episode)

as Beach Head (voice)

as Beach Head (voice)

as Octon / Garax (voice) (65 episodes)

as Liquidator (voice)

as Aquaman (voice) (10 episodes)

as Clumsy Smurf (voice)

as Gardan

as Clumsy Smurf / Painter Smurf / Dragon (voice) (as Bill Callaway)

as Clumsy Smurf (voice)

as Beach Head (voice) (30 episodes)

as (voice)

as (voice)