Kenneth Connor as Captain S. Melly

Windsor Davies as Sergeant Major "Tiger" Bloomer

Judy Geeson as Sergeant Tilly Willing

Patrick Mower as Sergeant Leonard Able

Jack Douglas as Bombardier Ready

Joan Sims as Private Jennifer Ffoukes-Sharpe

Melvyn Hayes as Gunner Shorthouse

Peter Butterworth as Major Carstairs

Peter Jones as Brigadier

Diane Langton as Private Alice Easy

Julian Holloway as Major Butcher

David Lodge as Captain Bull

Larry Dann as Gunner Shaw

Brian Osborne as Gunner Owen

Johnny Briggs as Captain Melly's Driver

Patricia Franklin as Corporal Cook

John Carlin as Officer

Linda Hooks as Nurse

Michael Nightingale as Officer

Vivienne Johnson as Freda

Jeremy Connor as Gunner Hiscock

Richard Olley as Gunner Parker

Peter Banks as Gunner Thomas

Richard Bartlett as Gunner Drury

Billy J. Mitchell as Gunner Childs

Peter Quince as Gunner Sharpe

Paul Toothill as Gunner Gale

Tricia Newby as Bombardier Murray

Louise Burton as A.T.S. Private Evans

Jeannie Collings as A.T.T. Private Edwards

Barbara Hampshire as A.T.S. Private Carter

Linda Regan as A.T.S. Private Taylor

Barbara Rosenblat as A.T.S.

Winston Churchill as Self (archive footage) (uncredited)