On the Threshold of Space - Elenco
Guy Madison
Capt. Jim Hollenbeck
Virginia Leith
Pat Lange
Dean Jagger
Dr. Hugo Thornton
John Hodiak
Maj. Ward Thomas
Martin Milner
Lt. Mort Glenn
Warren Stevens
Capt. Mike Bentley
King Calder
Lee Welch
Walter Coy
Lt. Col. Dick Masters
Ken Clark
Sgt. Ike Forbes