Edward G. Robinson

Federal Agent Wilson

Loretta Young

Mary Longstreet

Orson Welles

Prof. Charles Rankin

Philip Merivale

Judge Adam Longstreet

Richard Long

Noah Longstreet

Konstantin Shayne

Konrad Meinike

Byron Keith

Dr. Jeffrey Lawrence

Billy House

Mr. Solomon Potter

Martha Wentworth

Sara

David Bond

Student (uncredited)

John Brown

Passport Photographer (uncredited)

Neal Dodd

Minister (uncredited)

Nancy Evans

Undetermined Role (uncredited)

Adolph Faylauer

War Crimes Commision Member (uncredited)