Warren Hull
Mandrake the Magician
Doris Weston
Betty Houston
Al Kikume
Lothar, Mandrake's Assistant
Edward Earle
Dr. Andre Bennett
Forbes Murray
Professor Houston
Kenneth MacDonald
James Webster
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]
