Lionel Barrymore
— Mathias
Caroline Frances Cooke
— Catharine
Gustav von Seyffertitz
— Jerome Frantz
Lorimer Johnston
— Hans
Boris Karloff
— The Mesmerist
Eddie Phillips
— Christian
Lola Todd
— Annette
E. Alyn Warren
— Baruch Koweski / Jethro Koweski
Laura La Varnie
— Fortune Teller
John George
— Mesmerist Announcer (uncredited)