John Stephenson

Jack Bennett 'Bio...

Jim MacGeorge

Dr. Wilmer Sharp ...

Carol Bilger

Helen Bennett 'Mo...

Hal Rayle

Eric Bennett 'Spo...

BO

Bobbie Block

Meg Bennett 'Rock...

Brian Tochi

Bunjiro "Bunji" T...

NO

Norman Bernard

James Dwight "J.D...

Neil Ross

F.L.U.F.F.I. (voice)

Jennifer Darling

Madame-O (voice)

Frank Welker

Mechanic / Glove ...

Alan Oppenheimer

Prof. Amadeus Sha...

Arthur Burghardt

Edward Tully (voice)