Mandrake the Magician
Betty Houston
Lothar
Tommy Houston
Dr. Andre Bennett
Professor Houston
James Webster
Frank Raymond
Dorgan
Dirk
Green
Rest Home Nurse
Henchman
George Regan
Gray
Brown
Rest Home Henchman
Ed
Narrator
Cabbie
Construction Camp Watchman
Henchman CX12
Rest Home & Ironworks Henchman
Construction Camp Henchman
Baker
Mill River Inn Henchman
Harper Drive Henchman
Powerhouse Henchman
Harris
Bank Henchman
Williams
Powerhouse Henchman
Ward
Kidnapping Henchman
Mill River Inn Henchman
Roadster Henchman
Dam Henchman
Construction Foreman
Gas Station Hitman
Ironworks Henchman
Henchman
Mohawk Steward-Henchman
Ship Passenger
Magic Mart Henchman
Bank Henchman
Ship Henchman
Parsons
Powerhouse Henchman
Henchman-Driver
Streeter
Apartment-Raider
Henchman
Construction Camp Henchman
Tower Henchman
Rest Home Henchman
Henchman (uncredited)