Buster Crabbe
Flash Gordon
Jean Rogers
Dale Arden
Frank Shannon
Dr. Hans Zarkov
Charles Middleton
Ming the Merciless
Richard Alexander
Prince Barin
Jack 'Tiny' Lipson
King Vultan
James Pierce
Prince Thun
Theodore Lorch
High Priest
Richard Tucker
Professor Gordon
George Cleveland
Professor Hensley
Glenn Strange
Gocko/Robot/Soldier
Lon Poff
First High Priest
Constantine Romanoff
Monkey Man (uncredited)
Priscilla Lawson
Princess Aura
Earl Askam
Officer Torch
