Spaceship to the Unknown
Director Ray Taylor
Trailer
Cast
James Pierce
Prince Thun (archive footage)
Richard Tucker
Prof. Gordon (archive footage)
Bull Montana
Monkey-Man (archive footage) (uncredited)
Richard Alexander
Prince Barin (archive footage)
Lon Poff
The High Priest (archive footage)
Duke York
(scenes deleted) (archive footage) (as Duke York Jr.)
Constantine Romanoff
Monkey-Man (archive footage) (uncredited)
Buster Crabbe
Flash Gordon (archive footage)
Jean Rogers
Dale Arden (archive footage)
Frank Shannon
Dr. Hans Zarkov (archive footage)
Charles Middleton
Ming the Merciless (archive footage)
Theodore Lorch
Priest #2 (archive footage)
Harry Wilson
Captured soldier (archive footage) (uncredited)
Jack 'Tiny' Lipson
King Vultan (archive footage)
George Cleveland
Prof. Henson (archive footage)
Lynton Brent
Transcontinental airplane pilot (archive footage) (uncredited)
Al Ferguson
Telescreen monitor (archive footage) (uncredited)
Fred Kohler Jr.
Robot / Ming soldier (archive footage) (uncredited)
Glenn Strange
Robot / Ming soldier / Gocko (archive footage) (uncredited)
Priscilla Lawson
Princess Aura (archive footage)