Likeable country postman Harold Petts gets transferred from his village to London, where on his arrival he unwittingly foils a mail train robbery. Innocent in the ways of the big city, he is thought to be a member of another gang by both the train robbers and the police, who all suspect him of trying to rob the post office where he works.
Spike Milligan
as Harold Petts
Barbara Shelley
as Jean
John Wood
as P.C. Woods
Warren Mitchell
as Rupert
Archie Duncan
as Inspector
Lance Percival
as Joe
Arthur Mullard
as Sam
John Bennett
as Pete
Ronald Adam
as Mr. Fordyce
Miles Malleson
as Psychiatrist
Wilfrid Lawson
as Postman
Mario Fabrizi
as Villager
