Malcolm Keen

Old Abercrombie

Geoffrey Keen

Michael Abercrombie aka Young Abercrombie

Patrick Holt

Fred Connor

John Robinson

Berkeley Reckitt

Michael Goodliffe

Detective Insp. Barnes

Martin Lane

Det. Constable Watson

Bernard Miles

Mr. Jerome

Christopher Lee

Charles Highbury

Greta Gynt

Vere Litchen

John Phillips

Willis Croft

Patricia Marmont

Ambrosine

George A. Cooper

Hotel Porter

Rosalind Knight

(uncredited)

Leslie Perrins

Chairman of Tribunal

Ben Williams

Caller (uncredited)