Joseph "Joey" Felt/Nuclear Boy (voice)

Pauline Bell (voice)

Vivian Felt (voice)

Abigail Felt (voice)

Rex Bordeaux (voice)

Sergeant Subatomic/Mookie (voice)

Professor Tite-Gripp (voice)

Zorp, Mudman (voice)

Rudolph Mintenberg (voice)

Robo Ron (voice)