తారాగణం & సిబ్బంది
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Lloyd BridgesCol. Floyd Graham - Osa MassenDr. Lisa Van Horn
- Hugh O'BrianHarry Chamberlain/Voice on loudspeaker
- John EmeryDr. Karl Eckstrom
- Noah Beery Jr.Maj. William Corrigan
- Morris AnkrumDr. Ralph Fleming
- Patrick AherneReporter 1
- Kathryn MarloweReporter
- Sherry MorelandMartian Girl
- Judd HoldrenReporter 3
- Kurt Neumannడైరెక్టర్
- Robert L. Lippertప్రొడ్యూసర్
- Dalton Trumboరైటర్
- Kurt Neumannరైటర్