G.H. Mulcaster
— Air-Vice Marshal (as George Mulcaster)
Patric Curwen
— Major General Lecturer
Carleton Hobbs
— Cabinet Minister Sir Geoffrey
Jack Vyvyan
— Butcher (as Jack Vivyan)
Charles Denville
— Baker
Norman Wooland
— Candlestick Maker
Arthur Metcalfe
— Rich Man
Peter Cozens
— Poor Man
Foster Carling
— Apothecary
Cyril Chosack
— Gunner (uncredited)
Charles Hawtrey
— Cashier-Searchlight Operator (uncredited)
Michael Rennie
— Chemist-Radio Operator (uncredited)
Richard Todd
— Orderly (uncredited)