
The serial is sharply condensed into a 97‑minute feature that merges its original thirteen episodes. Scientists learn the planet Mongo is on a collision course with Earth, prompting Flash Gordon to lead a daring space mission. On Mongo, Flash and his companion Dale discover that the tyrant Ming deliberately set the crash, and only Flash can thwart his plan.
Does Spaceship to the Unknown have end credit scenes?
No!
Spaceship to the Unknown does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Spaceship to the Unknown, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Charles Middleton
Ming the Merciless (archive footage)

Richard Tucker
Prof. Gordon (archive footage)

Richard Alexander
Prince Barin (archive footage)

Glenn Strange
Robot / Ming soldier / Gocko (archive footage) (uncredited)

Jean Rogers
Dale Arden (archive footage)

Bull Montana
Monkey-Man (archive footage) (uncredited)

Frank Shannon
Dr. Hans Zarkov (archive footage)

Lon Poff
The High Priest (archive footage)

Charles McMurphy
Atom Furnace supervisor (archive footage)

Duke York
(scenes deleted) (archive footage) (as Duke York Jr.)

Theodore Lorch
Priest #2 (archive footage)

Harry Wilson
Captured soldier (archive footage) (uncredited)

Earl Askam
Officer Torch (archive footage)

George Cleveland
Prof. Henson (archive footage)

James Pierce
Prince Thun (archive footage)

Al Ferguson
Telescreen monitor (archive footage) (uncredited)

Lynton Brent
Transcontinental airplane pilot (archive footage) (uncredited)

Constantine Romanoff
Monkey-Man (archive footage) (uncredited)

Jack 'Tiny' Lipson
King Vultan (archive footage)

Buster Crabbe
Flash Gordon (archive footage)

Fred Kohler Jr.
Robot / Ming soldier (archive footage) (uncredited)

Priscilla Lawson
Princess Aura (archive footage)
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