|Fredric March||Samuel Langhorne Clemens|
|Alexis Smith||Olivia Langdon Clemens|
|Donald Crisp||J.B. Pond|
|Alan Hale||Steve Gillis|
|C. Aubrey Smith||Oxford Chancellor|
|John Carradine||Bret Harte|
|Percy Kilbride||Billings, Enterprise Typesetter|
This biopic tells the story of how Samuel Clemens became the renowned author Mark Twain. Growing up in the 1830s in Hannibal, Miss., Clemens works as a riverboat pilot on the Mississippi River. After he finds a picture of a beautiful girl and vows to marry her, he quits his job and travels to Nevada in search of gold with his friend Steve . In the midst of the Civil War, Clemens begins writing prolifically, thus beginning his famed career.