Peter Dyneley
Jeff Tracy / Commander Norman / Interceptor One Pilot (voice)
Acting
Shane Rimmer
Scott Tracy / Radar Operator (voice)
Acting
David Holliday
Vrigil Tracy / Newsreader (voice)
Acting
Matt Zimmerman
Alan Tracy / TV Reporter / Seahawk Pilot (voice)
Acting
David Graham
Gordon Tracy / Brains / Parker / Kyrano / Captain Hanson (voice)
Acting
Ray Barrett
John Tracy / The Hood / Lieutenant Burroughs / Patterson (voice)
Acting
Sylvia Anderson
Lady Penelope Creighton-Ward / Air Terrainean Guide (voice)
Acting
Christine Finn
Tin-Tin / Grandma Tracy (voice)
Acting