Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth. Luckily, heroic young Flash Gordon is on hand to lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.
Buster Crabbe
as Flash Gordon
Jean Rogers
as Dale Arden
Frank Shannon
as Dr. Hans Zarkov
Charles Middleton
as Ming the Merciless
Priscilla Lawson
as Princess Aura
Richard Alexander
as Prince Barin
Jack 'Tiny' Lipson
as King Vultan
James Pierce
as Prince Thun
Theodore Lorch
as High Priest
Earl Askam
as Officer Torch
Richard Tucker
as Professor Gordon
George Cleveland
as Professor Hensley
