Kadro (11)
Buster CrabbeFlash Gordon
Jean RogersDale Arden
Frank ShannonDr. Alexis Zarkov
Charles MiddletonMing the Merciless
Beatrice RobertsAzura, Queen of MarsDonald Kerr'Happy' Hapgood
Richard AlexanderPrince Barin
C. Montague ShawThe Clay King
Wheeler OakmanTarnak
Kenne DuncanThe Martian Airfield Captain
Kane RichmondTalgon's Brother - a Martian Captain