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