G.H. MulcasterAir-Vice Marshal (as George Mulcaster) Patric CurwenMajor General Lecturer Carleton HobbsCabinet Minister Sir Geoffrey Jack VyvyanButcher (as Jack Vivyan) Norman WoolandCandlestick Maker Cyril ChosackGunner (uncredited) Charles HawtreyCashier-Searchlight Operator (uncredited) Michael RennieChemist-Radio Operator (uncredited) Richard ToddOrderly (uncredited) J. Leutchford BaconAssistant Director 
