Douglas Fairbanks

as Billy Gaynor

Eileen Percy

as Ethel Forsythe

Gustav von Seyffertitz

as Dr. Jollyem

Charles McHugh

as Dr. Samm

Charles K. Gerrard

as Charles Riddles - Ethel's Lover

William H. Keith

as Mr. Carter

Ruth Allen

as Mrs. Fuller Jermes

Fred Goodwins

as Jordan Jinny

Florence Mayon

as Mrs. Phattison Oiles

Herbert Standing

as Mr. S.D. Dyspeptic

David Porter

as Mr. Coffin

Bull Montana

as Wild Man