Warner Baxter
Role: Dr. Samuel Alexander Mudd
Gloria Stuart
Role: Mrs. Peggy Mudd
Claude Gillingwater
Role: Colonel Dyer
Arthur Byron
Role: Mr. Erickson
O. P. Heggie
Role: Dr. Mac Intyre
Harry Carey
Role: Commandant
Francis Ford
Role: Corporal O'Toole
John McGuire
Role: Lieutenant Lovett
Francis McDonald
Role: John Wilkes Booth
Douglas Wood
Role: General Ewing
John Carradine
Role: Sergeant Rankin
Joyce Kay
Role: Martha Mudd
Fred Kohler Jr.
Role: Sergeant Cooper
Paul Fix
Role: David Herold
Frank Shannon
Role: Mr. Holt
Frank McGlynn Sr.
Role: Abraham Lincoln
Leila McIntyre
Role: Mrs. Abraham Lincoln
Etta McDaniel
Role: Aunt Rosabelle
J.M. Kerrigan
Role: Judge Maiben
Arthur Loft
Role: Carpet Bagger
Paul McVey
Role: General Hunter
Maurice Murphy
Role: Orderly
Matthew Beard
Role: Boy at Dr. Mudd's Door (uncredited)
Frank Baker
Role: Undetermined Secondary Role (uncredited)
Stanley Blystone
Role: Boy Seeking Dr. Mudd (uncredited)
Stanley Bordagaray
Role: Undetermined Secondary Role (uncredited)
Whitney Bourne
Role: Undetermined Secondary Role (uncredited)
Lester Dorr
Role: George A. Atzerodt (uncredited)
Robert Dudley
Role: Druggist at Trial (uncredited)
Jan Duggan
Role: Actress at Ford's Theatre (uncredited)
Earl Eby
Role: Usher (uncredited)
Dick Elliott
Role: Actor at Ford's Theatre (uncredited)
Bess Flowers
Role: Woman Sitting Behind Lincoln in Theatre Box (uncredited)
Bud Geary
Role: Sergeant (uncredited)
Melvin J. Gibby
Role: Lewis Payne (uncredited)
Charles Haefeli
Role: Prisoner (uncredited)
Robert Homans
Role: Sergeant (uncredited)
John Lester Johnson
Role: Black Soldier at Prison (uncredited)
Beulah Hall Jones
Role: Blanche (uncredited)
Paul Kruger
Role: Soldier (uncredited)
Duke R. Lee
Role: Sergeant (uncredited)
Wilfred Lucas
Role: Testifying Colonel (uncredited)
Murdock MacQuarrie
Role: Edman Spangler (uncredited)
James A. Marcus
Role: Blacksmith (uncredited)
Eric Mayne
Role: Court-Martial Participant (uncredited)
Paul McAllister
Role: Doctor (uncredited)
Merrill McCormick
Role: Commandant's Aide (uncredited)
J.P. McGowan
Role: Ship's Captain (uncredited)
Arthur Millett
Role: Undetermined Secondary Role (uncredited)
Wedgwood Nowell
Role: Court-Martial Member (uncredited)
Robert Parrish
Role: Undetermined Secondary Role (uncredited)
Vester Pegg
Role: Soldier (uncredited)
Jack Pennick
Role: Corporal (uncredited)
George H. Reed
Role: Black Man Giving Booth Directions (uncredited)
Paul Stanton
Role: Agitating Orator (uncredited)
Tom Steele
Role: Trooper (uncredited)
Harry Strang
Role: Ship's Mate (uncredited)
Cyril Thornton
Role: Michael O'Laughlin (uncredited)
Ray Turner
Role: Black Soldier at Prison (uncredited)
Blue Washington
Role: Black Soldier at Prison (uncredited)
Charles West
Role: Washington (DC) Citizen (uncredited)
Cecil Weston
Role: Mary Surratt (uncredited)
Lloyd Whitlock
Role: Maj. Rathbone (uncredited)