David Hutcheson

as Dr. Hedgepath

as Hoppy

as Bürgermeister

as Ministry Official

as Lord Barry

as Garage Customer in Car (uncredited)

as Tony Wrexham

as Stockbroker

as Captain Sandeman

as Sandy Wescott

as Mackie

as Lord Rockingham

as Intelligence officer

as Denning

as Lord Anthony Dewhurst

as Max

as Freddie Cooper

as Lord Moyne

as Tipster at Racecourse

as Sir Roger

as Marmaduke Paradine

as Ex-R.A.F. Type (uncredited)

as Squadron Leader Sowerby

as Colonel McAlpine

as Bishop

as Sir George More-Litton

as Thompson

as David

as Buster

as Mr. Justice Tanner

as Capt. Richard Tracey

as Major Craxton-Christie

as Annix

as Bassy

as Possiter

as Professor Widmark

as Lord Mendip, D.L., D.S.O., M.C.