Jeff Tracy (voice)
Peter Dyneley
Lady Penelope Creighton-Ward (voice)
Sylvia Anderson
James Glenn (voice)
Geoffrey Keen
Scott Tracy (voice)
Shane Rimmer
Virgil Tracy / Hogarth (voice)
Jeremy Wilkin
Alan Tracy / Carter (voice)
Matt Zimmerman
Gordon Tracy / Brains / Aloysius Parker (voice)
David Graham
John Tracy / Narrator (voice)
Keith Alexander
Black Phantom / Captain Foster (I) / Lane (voice)
Gary Files
Tin-Tin / Indian Fortune-Teller (voice)
Christine Finn
Captain Foster (II) (voice)
John Carson
Writer
Gerry Anderson
Director
David Lane
Original Music Composer
Barry Gray
Producer
Production Manager
Norman Foster
Editor
Len Walter
Director of Photography
Harry Oakes
Art Direction
Bob Bell
Visual Effects Director
Derek Meddings