Jeff Richards
Mark Bradley
Acting
John Smith
Joe Walker
Acting
Venetia Stevenson
Venus
Acting
Alan Napier
Dr. Paul Lujan
Acting
Diane Jergens
Urana
Acting
June Blair
Mercuria
Acting
Gavin Muir
Dr. McBain
Acting
George Brand
M. Hugh Garland
Acting
Vern Taylor
Co-Pilot (uncredited)
Acting
Tom Riley
Co-Pilot (uncredited)
Acting
Bob Stratton
Pilot (uncredited)
Acting