Alastair Sim
Capt. William Paris
Acting
Elizabeth Allan
Angela Prout
Acting
Roland Culver
George Prout
Acting
George Cole
Soldier in Brains Trust audience
Acting
Colin Gordon
Professor Mutch
Acting
Martita Hunt
Lady Dodd
Acting
Janet Brown
Jessie
Acting
Peter Martyn
Walter
Acting
Miles Malleson
Dr. Hector McAdam
Acting
Edward Chapman
Joseph Byres M.P.
Acting
Cyril Chamberlain
Drill Sergeant
Acting
Michael Ripper
Drill Corporal
Acting
Robin Bailey
Intellectual Corporal
Acting
Michael Kelly
Staff Sergeant
Acting
Patrick Westwood
Soldier in Pub
Acting