Marius Goring as Vincent Perrin

David Farrar as David Traill

Greta Gynt as Isobel Lester

Raymond Huntley as Moy-Thompson

Edward Chapman as Birkland

Mary Jerrold as Mrs. Perrin

Ralph Truman as Comber

Finlay Currie as Sir Joshua Varley

Maurice Jones as Clinton

Lloyd Pearson as Dormer

May MacDonald as Mrs. Dormer

Viola Lyel as Mrs. Comber

Archie Harradine as White

Donald Barclay as Rogers

Pat Nye as Matron

Howard Douglas as Jenkins

John Campbell as Garden

Brendan Clegg as Dodge

Cavan Malone as Benson

Roddy Hughes as Doctor

David Lines as Johnson

Brian McDermott as Henderson

Roy Sargent as 2nd Prefect

Johnnie Schofield as Barman

John Warren as Chauffeur

Sheila Huntington as Vera