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