Samuel Langhorne Clemens (Mark Twain)

Olivia Langdon Clemens

J.B. Pond

Steve Gillis

Oxford Chancellor

Bret Harte

Horace E. Bixby, Riverboat Captain

Jervis Langdon

Clara Clemens

Charles Langdon

Dr. Quintard (uncredited)

Butler

Mrs. Langdon

Young Samuel Clemens

Toy Shop Clerk

Ulysses S. Grant

Audience Member (uncredited)