Cast
David Graham
Brains / Parker / Olsen / Captain Savidge / Hitchins (voice)
Shane Rimmer
Scott Tracy (voice)
David Holliday
Virgil Tracy (voice)
Ray Barrett
John Tracy / Cass Carnaby / Commander, Matthews Field / Radio Maxwell DJ (voice)
Christine Finn
Tin-Tin Kyrano / Grandma Tracy (voice)
Sylvia Anderson
Lady Penelope Creighton-Ward (voice)
Peter Dyneley
Jeff Tracy (voice)
Matt Zimmerman
Alan Tracy / Banino / Macklin / Foreign Lieutenant (voice)