as

as Monty Clayton

as Mr Horrobin

as Chilwell

as Sir Montague Corner

as

as Lord Redesdale

as Chartermain

as Peter Montrose ("Murder at Midnight")

as Dickie Melborne

as Stanley

as Tarquin

as Maj. Daintry

as Colonel

as Colonel Hall

as

as Philip Crane

as Gus Ashley

as

as Colonel Wright

as

as Coroner

as Jarvis

as

as Jack Newton

as The Lawyer

as Belton

as Hugh

as Lomax

as Adrian Beresford

as Ian Osborn Utley

as Hindsmith

as Captain Douglas

as

as Major Cranmore

as Wilkins

as

as Colonel Scuttling - Scotland Yard Man

as

as Det. Thompson

as Immigration Officer

as

as Mr. Ballard

as George Aisgill

as Mr MacBryde

as German Technical Examiner

as Garsden

as Major Donald Ross

as

as Cavendish

as

as Smythe

as Jenkins

as Housemaster

as Member of Whitehall Conference

as Dr. Fisher

as Mr. Eccles

as Bodley

as Wilkie (uncredited)

as Col. Hannerly

as Da Silva

as Superintendent Symington

as Randolph St. John

as Sylvan-Jones

as Captain Patterson

as Maj. Baker

as Lord Melford

as Webster

as

as Capt. Eric Simpson

as Capt. Christopher Connaught-Smith

as

as

as Sexton

as

as British Lieutenant

as

as Philip

as

as George Aisgill

as Foley

as Guards Officer

as Brigadier's Staff Officer

as Police Inspector

as Chailey

as Captain Donaldson

as Dr. Stevenson

as Det. Inspector

as Colonel Packham

as Vice-Admiral

as

as Clifford

as First Gentleman

as Jonathan Redgrove

as Billy

as Henry Carmichael

as Malbete

as Lt. Col. Henniker