Peter Dyneley

Jeff Tracy / Commander Norman / Interceptor One Pilot (voice)

Shane Rimmer

Scott Tracy / Radar Operator (voice)

David Holliday

Vrigil Tracy / Newsreader (voice)

Matt Zimmerman

Alan Tracy / TV Reporter / Seahawk Pilot (voice)

David Graham

Gordon Tracy / Brains / Parker / Kyrano / Captain Hanson (voice)

Ray Barrett

John Tracy / The Hood / Lieutenant Burroughs / Patterson (voice)

Sylvia Anderson

Lady Penelope Creighton-Ward / Air Terrainean Guide (voice)

Christine Finn

Tin-Tin / Grandma Tracy (voice)

Alan Pattillo

Desmond Saunders