Top Secret is a comedy play by Alan Melville which was first performed in 1949.
[1] It premiered at the Theatre Royal, Newcastle before transferring to the Winter Garden Theatre in London's West End where it ran for 21 performances between 19 October and 5 November 1949.
The original West End cast included Tom Gill, Hugh Wakefield, Frederick Valk and Beryl Measor.
It was not well-received, and was reportedly booed by audiences on its opening night.
A review in The Stage considered it was too long and needed speeding up.