Casts
Rex Reason
as Dr. Cal Meacham
Faith Domergue
as Dr. Ruth Adams
Jeff Morrow
as Exeter
Lance Fuller
as Brack
Robert Nichols
as Joe Wilson
Russell Johnson
as Steve Carlson
Douglas Spencer
as The Monitor of Metaluna
Richard Deacon
as Spacecraft Pilot
Karl Ludwig Lindt
as Dr. Adolph Engelborg
Robert B. Williams
as Webb
