James Mason

Michael Joyce

Rosamund John

Emma Wright

Pamela Mason

Kate Howard

Ann Stephens

Ann Wright

Morland Graham

Clay

Brefni O'Rorke

Dr. Farrell

Henry Oscar

Coroner

Jane Hylton

Miss Marsh

Sheila Huntington

First Girl Student

Susan Shaw

Second Girl Student

Peter Cotes

Male Student

Nuna Davey

Mrs. Jenny Deva

Judith Carol

Joan Scott-Trotter

Janet Burnell

Sylvia

John Monaghan

U.S. Driver

Beatrice Varley

Injured Girl's Mother

Hélène Burls

Farm Laborer's Wife

Howard Douglas

Lorry Driver

Richard Afton

Lorry Driver's Mate

Cyril Chamberlain

Junior Doctor (uncredited)

Lyn Evans

County Policeman

Maurice Denham

Mobile Policeman

Glyn Rowland

Policeman (uncredited)

John Stone

Policeman (uncredited)

Margaret Withers

Party Guest

John Tatum

Party Guest (uncredited)

George Merritt

Policeman (uncredited)