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