Tom Tyler
— Godfrey Prescott / The Phantom
Jeanne Bates
— Diana Palmer
Kenneth MacDonald
— Dr. Bremmer
Frank Shannon
— Professor Davidson
Ernie Adams
— Rusty Fenton (uncredited)
Anthony Caruso
— Count Silento (uncredited)
George Chesebro
— Marsden (uncredited)
Edmund Cobb
— Grogan (uncredited)
Iron Eyes Cody
— Native (uncredited)
Dick Curtis
— Tartar Chieftain (uncredited)
I. Stanford Jolley
— Watson (uncredited)
Frank Shannon
— Prof. Davidson (uncredited)
Jay Silverheels
— Astari Warrior (uncredited)
Dan White
— Braddock (uncredited)
Ace the Wonder Dog
— Devil (uncredited)