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