Dr. Samuel Alexander Mudd

Warner Baxter

Mrs. Peggy Mudd

Gloria Stuart

Colonel Dyer

Claude Gillingwater

Mr. Erickson

Arthur Byron

Lieutenant Lovett

John McGuire

Martha Mudd

Joyce Kay

Dr. Mac Intyre

O.P. Heggie

Dr. Mac Intyre

O. P. Heggie

Commandant of Fort Jefferson

Harry Carey

Corporal O'Toole

Francis Ford

General Ewing

Douglas Wood

Sergeant Cooper

Fred Kohler Jr.

John Wilkes Booth

Francis McDonald

Sergeant Rankin

John Carradine

David Herold

Paul Fix

President Abraham Lincoln

Frank McGlynn Sr.

Mr. Erickson

A.S. Byron

Buck Tilford

Ernest Whitman

General Hunter

Paul McVey

Judge Advocate Holt

Frank Shannon

Mrs. Abraham Lincoln

Leila McIntyre

Rosabelle Tilford

Etta McDaniel

Judge Maiben

J.M. Kerrigan

Carpet Bagger

Arthur Loft

Judge Maiben

J. M. Kerrigan

Orderly

Maurice Murphy

Orator

Paul Stanton

Signal Man

Jack Pennick

Commandant's Aide

Merrill McCormack

Boy at Dr. Mudd's Door (uncredited)

Matthew Beard

Undetermined Secondary Role (uncredited)

Frank Baker

Blacksmith

James Marcus

Actress

Jan Duggan

Boy Seeking Dr. Mudd (uncredited)

Stanley Blystone

Maj. Rathbone

Lloyd Whitlock

Undetermined Secondary Role (uncredited)

Whitney Bourne

George A. Atzerodt (uncredited)

Lester Dorr

Actor

Dick Elliott

Spangler

Murdock MacQuarrie

Druggist at Trial (uncredited)

Robert Dudley

Sergeant

Bud Geary

Sergeant

Duke Lee

Usher (uncredited)

Earl Eby

Sergeant

Robert E. Homans

Woman Sitting Behind Lincoln in Theatre Box (uncredited)

Bess Flowers

Colonel

Wilfred Lucas

Lewis Payne (uncredited)

Melvin J. Gibby

Mrs. Surratt

Cecil Weston

Prisoner (uncredited)

Charles Haefeli

Maurice O'Laughlin

Cyril Thornton

Blanche

Beulah Hall Jones

Sergeant (uncredited)

Robert Homans

Black Soldier at Prison (uncredited)

John Lester Johnson

Ship's Captain

J.P. McGowan

Soldier (uncredited)

Paul Kruger

Sergeant (uncredited)

Duke R. Lee

Mate

Harry Strang

Undetermined Secondary Role (uncredited)

Robert Parrish

Court-Martial Participant (uncredited)

Eric Mayne

Doctor (uncredited)

Paul McAllister

Undetermined Secondary Role (uncredited)

Arthur Millett

Court-Martial Member (uncredited)

Wedgwood Nowell

Soldier (uncredited)

Vester Pegg

Black Man Giving Booth Directions (uncredited)

George H. Reed

Trooper (uncredited)

Tom Steele

Black Soldier at Prison (uncredited)

Ray Turner

Black Soldier at Prison (uncredited)

Blue Washington

Washington (DC) Citizen (uncredited)

Charles West