Warren Hull
饰 Mandrake the Magician
Doris Weston
饰 Betty Houston
Al Kikume
饰 Lothar, Mandrake's Assistant
Rex Downing
饰 Tommy Houston
Edward Earle
饰 Dr. Andre Bennett
Forbes Murray
饰 Professor Houston
Kenneth MacDonald
饰 James Webster
Don Beddoe
饰 Frank Raymond
Dick Curtis
饰 Dorgan - Thug (Chs. 6-8)
John Tyrrell
饰 Dirk, lead thug
Stanley Brown
饰 Green, thug [Chs. 1, 2, 4]
Beatrice Curtis
饰 Rest Home Nurse [Chs. 3,10]
Robert Sterling
饰 Henchman
Sam Ash
饰 George Regan, hypnotist [Chs. 3-5]
Lester Dorr
饰 Gray, gas station thug [Chs. 8-9]
