as John Warwick (segment “The Caterpillar”)

as Sir Halsey Hopewell

as British Ambassador

as Anthony Bridewell

as Gordon Moreland

as Hugh Palgrave

as Gavin Elster

as Zachary Wilde

as Stowe Devlin

as Jim Wardman

as Miles Farnham

as Lamont Cranston

as Courtney Craig

as Harold McCormick

as George Manson

as Detective Superintendent Tom Reid

as Crane Weymouth

as Matisson

as Norrie Lorfield

as Michael Pemberton

as Harry Miller

as Colonel Anderson (uncredited)

as Stephen

as Alfred Jerome

as Peter Dewin

as Ronnie Gordon

as Ronnie Helmore

as Harry Maitland

as Paul

as Geoffrey

as Willie Nagg

as David

as Tony

as Worthing

as Spectator (uncredited)