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Jack Palance
Omus
Carol Lynley
Nikki
Barry Morse
Dr. John Caball
John Ireland
Senator Smedley
Nicholas Campbell
Jason Caball
Anne-Marie Martin
Kim Smedley
Greg Swanson
Sparks (voice)
Mark Parr
Sparks
William Hutt
Lomax (voice)
Ardon Bess
Merrick
Lynda Mason Green
Lunar technician
Albert Humphries
Robot technician
Bill Lake
Spacesuited man
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