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