Dr. Cal Meacham

Rex Reason

Acting

Dr. Ruth Adams

Faith Domergue

Acting

Exeter

Jeff Morrow

Acting

Brack

Lance Fuller

Acting

Joe Wilson

Robert Nichols

Acting

Steve Carlson

Russell Johnson

Acting

The Monitor of Metaluna

Douglas Spencer

Acting

Spacecraft Pilot

Richard Deacon

Acting

Mutant

Regis Parton

Acting

Dr. Adolph Engelborg

Karl Ludwig Lindt

Acting

Webb

Robert B. Williams

Acting

Express Deliveryman

Coleman Francis

Acting