Alastair Sim

Millicent Fritton / Clarence Fritton

Joyce Grenfell

P.W. Sgt. Ruby Gates

George Cole

Flash Harry

Hermione Baddeley

Miss Drownder

Betty Ann Davies

Miss Waters

Renée Houston

Miss Brimmer

Beryl Reid

Miss Wilson

Irene Handl

Miss Gale

Mary Merrall

Miss Buckland

Joan Sims

Miss Dawn

Balbina

Mlle de St. Emilion

Jane Henderson

Miss Holland

Diana Day

Jackie

Jill Braidwood

Florrie

Annabelle Covey

Maudie

Pauline Drewett

Celia

Jean Langston

Rosie

Lloyd Lamble

Superintendent Kemp Bird

Richard Wattis

Manton Bassett

Guy Middleton

Eric Rowbottom-Smith

Arthur Howard

Wilfred Woodley

Michael Ripper

Albert Faning

Eric Pohlmann

The Sultan of Makyad

Sidney James

Benny

Martin Walker

Hankinson

Noel Hood

Bilston School Mistress

Vivienne Martin

Arabella

Elizabeth Griffiths

Gladys

Andrée Melly

Lucretia

Belinda Lee

Amanda

Michael Kelly

Bill

Tommy Duggan

Joe

Paul Connell

Sam

Lorna Henderson

Fatima

Vivien Wood

Miss Anderson

Cara Stevens

Sultan's Secretary

Jerry Verno

Alf - the Bookmaker

Jack Doyle

Assistant Trainer

Arthur Mullard

Henchman (uncredited)

Carol White

Schoolgirl (uncredited)

Barbara Windsor

Schoolgirl (uncredited)