David Hutcheson

as Mackie

as Professor Widmark

as Mr. Justice Tanner

as Dr. Hedgepath

as Crashaw

as Stockbroker

as Possiter

as Lord Barry

as Sir George More-Litton

as Self – Guest

as Ministry Official

as Major Craxton-Christie

as Lord Moyne

as General de Coetlogan

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

as Colonel McAlpine

as Sir Roger

as Bürgermeister

as Bishop

as Freddie Cooper

as Tipster at Racecourse

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

as Buster

as Sandy Wescott

as Tony Wrexham

as Lord Anthony Dewhurst

as Annix

as Max

as David

as Denning

as Marmaduke Paradine

as Squadron Leader Sowerby

as Cyril Todd

as Garage Customer in Car (uncredited)

as Steve Halligan

as Hoppy

as Capt. Richard Tracey

as Intelligence officer

as Captain Sandeman

as Cmdr. Baddeley

as Peter Malden

as Bassy

as Peter Thurston

as Teddy Carson

as Thompson

as Bob Mervyn

as Lord Rockingham