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