Shaun Fleming

as Jim Possible / Tim Possible (voice)

as Additional Voices (voice)

as Leonard Amadeus Helperman (voice)

as Jim and Tim Possible (voice)

as Keoni Jameson (voice) (5 episodes)

as Billy Taggart

as Proper Kid (voice) (5 episodes), as Theldin Fryburger / Texas (voice) (1 episode), as Kid / Thug #1 (voice) (1 episode)

as Tim Possible / Jim Possible (voice) (31 episodes), as Rocket Booster #4 (voice) (1 episode), as Additional Voices (voice) (1 episode)

as Young Tarzan (voice) (1 episode)

as Sal Martinez

as Leonard Helperman (voice) (47 episodes)

as Young Max Goof (voice)

as Cookie (voice) (1 episode)

as Kyle Cooper (13 episodes)