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.
Cyril Chamberlain
Drill Sergeant
Michael Ripper
Drill Corporal
Robin Bailey
Intellectual Corporal
Michael Kelly
Staff Sergeant
