Peter Dyneley

Jeff Tracy / Professor Heinz Bodman (voice)

Shane Rimmer

Scott Tracy (voice)

David Holliday

Virgil Tracy (voice)

Matt Zimmerman

Alan Tracy / TV Reporter (voice)

David Graham

Gordon Tracy / Brains / Kyrano / Solarnaut Asher / Braman (voice)

Ray Barrett

Colonel Harris / Colonel Benson (voice)

Christine Finn

Tin-Tin Kyrano (voice)

John Tate

Solarnaut Camp (voice) (uncredited)