Peter Yates (as Charlie Ruggles)
Eric Gorman
Jerry Evans
Dr. Jack Woodford
Roger Hewitt
Evelyn Gorman
Professor G.A. Evans
Little Girl at the Zoo (uncredited)
Banquet Guest (uncredited)
Little Boy at the Zoo (uncredited)
Policeman Reardon (uncredited)
Telegraph Messenger (uncredited)
Dan Baker - Zoo Guard (uncredited)
Apartment Desk Clerk (uncredited)
Bob Taylor (uncredited)
Banquet Photographer / Zoo Guard (uncredited)
Brad - Banquet Photographer (uncredited)
Little Boy (uncredited)
Doctor (uncredited)
(uncredited)
Ship Passenger in Deck Chair (uncredited)
Seaman (uncredited)