When a well-loved headmaster decides to retire, his scheming pupils have other ideas. The cunning boys unleash a campaign of practical jokes, armed with gin, itching power, and bombs!
Kenneth Connor
as Gregory Adams
Charles Hawtrey
as Michael Bean
Leslie Phillips
as Alistair Grigg
Joan Sims
as Sarah Allcock
Kenneth Williams
as Edwin Milton
Hattie Jacques
as Grace Short
Rosalind Knight
as Felicity Wheeler
Cyril Chamberlain
as Alf Hudson
Ted Ray
as William 'Wakie' Wakefield, the Headmaster
George Howell
as Billy Haig - Saboteur
Diana Beevers
as Penelope 'Penny' Lee - Saboteur
Jacqueline Lewis
as Pat Gordon - Saboteur
