Calificación
Reparto

Alastair Sim
Professor Ernst Kronak

Fred Emney
Sir George Denberry-Baxter

Edward Rigby
Timmy Tiverton

Oliver Wakefield
Sir Reginald Foxfield

Patricia Roc
Hope Ollerton

Annie Esmond
Lady Foxfield

Marian Spencer
Lady Shepshod

Olive Sloane
Daisy Barley

Maire O'Neill
Mrs. Mitterley

Gus McNaughton
Ketley

Charles Hawtrey
Young Orton

Peter Gawthorne
Major Shiptonthorpe

Aubrey Mallalieu
Commander Spofforth

G.H. Mulcaster
Inspector

Wally Patch
Sam

Horace Kenney
Walter Shepton