出演

• Alastair Sim — Capt. William Paris
• Elizabeth Allan — Angela Prout
• Roland Culver — George Prout
• George Cole — Soldier in Brains Trust audience
• Colin Gordon — Professor Mutch
• Martita Hunt — Lady Dodd
• Janet Brown — Jessie
• Peter Martyn — Walter
• Miles Malleson — Dr. Hector McAdam
• Edward Chapman — Joseph Byres M.P.