Fredric March
Samuel Langhorne Clemens (Mark Twain)
Alexis Smith
Olivia Langdon Clemens
Donald Crisp
J.B. Pond
Alan Hale
Steve Gillis
C. Aubrey Smith
Oxford Chancellor
John Carradine
Bret Harte
Robert Barrat
Horace E. Bixby, Riverboat Captain
Walter Hampden
Jervis Langdon
Joyce Reynolds
Clara Clemens
William Henry
Charles Langdon
Charles Waldron
Dr. Quintard (uncredited)
Willie Best
Butler
Nana Bryant
Mrs. Langdon
Dickie Jones
Young Samuel Clemens
