Mary Pickford
— Mary Marlowe / Mary Carlton
Leslie Howard
— John Carlton
C. Aubrey Smith
— William Marlowe
Blanche Friderici
— Martha Marlowe
Doris Lloyd
— Susan Channing
Herbert Evans
— Lord Hurley
Ned Sparks
— Sunshine
Allan Sears
— Jake Houser
Mona Maris
— Señora Lolita Martinez
Huntley Gordon
— William Carlton
Ethel Clayton
— Audrey Carlton
Bessie Barriscale
— Susan Carlton
Theodore von Eltz
— Robert Carlton
Randolph Connolly
— Robert Carlton as a Child (uncredited)
Virginia Grey
— Audrey Carlton as a Child (uncredited)
Ellen Johnson
— Susan Carlton as a Child (uncredited)
Florence Lawrence
— Undetermined Role (uncredited)
Broderick O'Farrell
— Party Guest (uncredited)
Russell Simpson
— Doctor (uncredited)
Jerry Stewart
— Minor Role (uncredited)
Lyman Williams
— William Carlton as a Young Man (uncredited)