as Baron de la Ma de la Toulon (uncredited)
as Sir William Drayton
as Dr. Bert Dilling
as Sergeant (uncredited)
as Sir Edgar Whipsnade
as
as Roy Lucas
as Maj. MacStreet
as Compton - Cynthia's First Man (uncredited)
as Dr. Carthwright
as Lt. Meyerdorf
as Cyril
as Favell
