Robert Ryan

Abraham Lincoln

Charles Bickford

Dr. Stone

Richard Long

Capt. Leipole

Willis Bouchey

Edwin Stanton

Howard Wendell

William Seward

Johnny Lee

Simon

Paul Keast

Salmon Chase

Mack Williams

Montgomery Blair

John Craven

Reporter

Dennis King Jr.

Petitioner

H. C. Potter

Self

Arthur Q. Bryan

Cabinet Member (uncredited)

Michael Jeffers

Reporter (uncredited)

Scott Seaton

Reporter (uncredited)

Arthur Tovey

Cabinet Member (uncredited)