Générique complet
Le docteur X
Lon Chaney
Dr. Ziska
Johnny Arthur
Johnny Goodlittle
Gertrude Olmstead
Betty Watson
Hallam Cooley
Amos Rugg
Charles Sellon
Russ Mason
Walter James
Caliban
Knute Erickson
Daffy Dan
Frank Austin
Rigo
Edward McWade
Luke Watson
Ethel Wales
Mrs. Watson
Elmo Billings
Freckle Faced Kid (uncredited)
Herbert Prior
Dr. Edwards (uncredited)
William H. Turner
Detective Jennings (uncredited)
Dorothy Vernon
Townswoman at Accident Scene (uncredited)
