Lady Penelope Creighton-Ward (voice)

John Tracy / The Hood (voice)

Space Captain Greg Martin (voice)

Jeff Tracy (voice)

Tin-Tin Kyrano (voice)

Gordon Tracy / Brains / Aloysius Parker (voice)

Captain Paul Travers (voice)

Dr. Ray Pierce (voice)

Space Navigator Brad Newman / Swinging Star Compere (voice)

Scott Tracy (voice)

Dr. Tony Grant / Angry Young Man / Public Relations Officer (voice)

Virgil Tracy / Space Exploration Center President (voice)

Alan Tracy / Messenger (voice)

Himself (voice)

Cliff Richard Jr. (voice)