Self (archival footage)
Sam Marberg
Prof. Bartnev
Barone Rothschild
Judge
Leonides Cox
himself
The Bishop
Federico (as Feodor Chaliapin)
Brother Terrel
Leonardo's father
Old Man
Jorge de Burgos
Messenger
Professor Arnold / Dr. Varelli
Nonno di Giacomino
Frank Costello
Il cardinale arcivescovo di Milano Federico (as Feodor Chaliapin)
senatore Torsello
Actor Playing Julius Cesar (uncredited)
don Calogero
The Doge
il doge Giovanni Bembo
Lackey (uncredited)
Violinist (uncredited)
Terkin (as Feodor Chaliapin)
Leo (Uncredited)
Kashkin
Shop Foreman (uncredited)
Sky Man
Soldier (uncredited)
Kaishevshy
Fred
Nick (as F. Schaljapin)
