Warner Baxter as Dr. Samuel Alexander Mudd

Gloria Stuart as Mrs. Peggy Mudd

Claude Gillingwater as Colonel Dyer

Arthur Byron as Mr. Erickson

O. P. Heggie as Dr. Mac Intyre

Harry Carey as Commandant

Francis Ford as Corporal O'Toole

John McGuire as Lieutenant Lovett

Francis McDonald as John Wilkes Booth

Douglas Wood as General Ewing

John Carradine as Sergeant Rankin

Joyce Kay as Martha Mudd

Fred Kohler Jr. as Sergeant Cooper

Ernest Whitman as Buck

Paul Fix as David Herold

Frank Shannon as Mr. Holt

Frank McGlynn Sr. as Abraham Lincoln

Leila McIntyre as Mrs. Abraham Lincoln

Etta McDaniel as Aunt Rosabelle

J.M. Kerrigan as Judge Maiben

Arthur Loft as Carpet Bagger

Paul McVey as General Hunter

Maurice Murphy as Orderly

Matthew Beard as Boy at Dr. Mudd's Door (uncredited)

Frank Baker as

Stanley Blystone as

Stanley Bordagaray as

Whitney Bourne as

Lester Dorr as George A. Atzerodt

Robert Dudley as Druggist at Trial

Jan Duggan as Actress at Ford's Theatre

Earl Eby as Usher

Dick Elliott as Actor at Ford's Theatre

Bess Flowers as Woman Sitting Behind Lincoln in Theatre Box

Bud Geary as Sergeant

Melvin J. Gibby as Lewis Payne

Charles Haefeli as Prisoner

Robert Homans as Sergeant

John Lester Johnson as Black Soldier at Prison

Beulah Hall Jones as Blanche

Paul Kruger as Soldier

Duke R. Lee as Sergeant

Wilfred Lucas as Testifying Colonel

Murdock MacQuarrie as Edman Spangler

James A. Marcus as Blacksmith

Eric Mayne as Court-Martial Participant

Paul McAllister as Doctor

Merrill McCormick as Commandant's Aide

J.P. McGowan as Ship's Captain

Arthur Millett as

Wedgwood Nowell as Court-Martial Member

Robert Parrish as

Vester Pegg as Soldier

Jack Pennick as Corporal

George H. Reed as Black Man Giving Booth Directions

Paul Stanton as Agitating Orator

Tom Steele as Trooper

Harry Strang as Ship's Mate

Cyril Thornton as Michael O'Laughlin

Ray Turner as Black Soldier at Prison

Blue Washington as Black Soldier at Prison

Charles West as Washington (DC) Citizen

Cecil Weston as Mary Surratt

Lloyd Whitlock as Maj. Rathbone