Lugosi Béla
Frank Chandler (Chandu)
Maria Alba
Nadji - Princess of Egypt
Murdock MacQuarrie
The Supreme Voice of Ubasti [Chs. 4-12]
Clara Kimball Young
Dorothy Regent
Dean Benton
Bob Regent (as Deane Benton)
Phyllis Ludwig
Betty Regent
Lucien Prival
Vindhyan, High Priest [Chs. 1-4]
Cyril Armbrister
Henchman Sutra [Chs.1-4]
Wilfred Lucas
Capt. Wilson [Chs. 4-12]
Josef Swickard
Tyba, The White Magician [Chs. 8-12]
Baby Peggy
Judy Allen
Dick Botiller
Morta
Iron Eyes Cody
Cat Man
Louise Emmons
Sisaba
