Peter Dyneley

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

Shane Rimmer

as Scott Tracy / Radar Operator (voice)

David Holliday

as Vrigil Tracy / Newsreader (voice)

Matt Zimmerman

as Alan Tracy / TV Reporter / Seahawk Pilot (voice)

David Graham

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

Ray Barrett

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

Sylvia Anderson

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

Christine Finn

as Tin-Tin / Grandma Tracy (voice)