Jeff Tracy / Professor Heinz Bodman (voice)

Peter Dyneley

Acting

Scott Tracy (voice)

Shane Rimmer

Acting

Virgil Tracy (voice)

David Holliday

Acting

Alan Tracy / TV Reporter (voice)

Matt Zimmerman

Acting

Gordon Tracy / John Tracy / Brains / Kyrano (voice)

David Graham

Acting

Tin-Tin Kyrano / Grandma Tracy (voice)

Christine Finn

Acting

Virgil Tracy / Operator Power / Tom (voice)

Jeremy Wilkin

Acting

Colonel Harris / Colonel Benson / Rick O’Shea (voice)

Ray Barrett

Acting

Solarnaut Camp (voice)

John Tate

Acting

International Space Control Commander (voice)

Charles Tingwell

Acting

Professor Marshall (voice)

Sylvia Anderson

Acting