Jack Bennett 'Bionic-1' / Klunk (voices)
Dr. Wilmer Sharp Ph.D. 'Dr. Scarab' (voice)
Helen Bennett 'Mother-1' (voice)
Eric Bennett 'Sport-1' (voice)
Meg Bennett 'Rock-1' (voice)
Bunjiro "Bunji" Tsukahara 'Karate-1' (voice)
James Dwight "J.D." Corey 'IQ' (voice)
F.L.U.F.F.I. (voice)
Madame-O (voice)
Mechanic / Glove / Chopper (voices)
Prof. Amadeus Sharp (voice)
Edward Tully (voice)
Dr. Hugo Fish (voice)