Eric Stanley

as Dr. Ames (uncredited)

as Ritter

as David Dow Harriman

as General Ross

as Shields

as Mr. Nelson

as Hubert Kingery (Uncredited)

as Bentley

as Tom Hardwicke

as Captain Donald McDonald

as Col. Whitcomb

as Sir George, Medical Council Prosecutor

as Dr. Martin

as Mr. Lane

as Sir Francis

as Commissioner

as Valdez