David Hutcheson

Mackie

Professor Widmark

Mr. Justice Tanner

Dr. Hedgepath

Crashaw

Stockbroker

Possiter

Lord Barry

Sir George More-Litton

Self – Guest

Ministry Official

Major Craxton-Christie

Lord Moyne

General de Coetlogan

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

Colonel McAlpine

Sir Roger

Bürgermeister

Bishop

Freddie Cooper

Tipster at Racecourse

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

Buster

Sandy Wescott

Tony Wrexham

Lord Anthony Dewhurst

Annix

Max

David

Denning

Marmaduke Paradine

Squadron Leader Sowerby

Cyril Todd

Garage Customer in Car (uncredited)

Steve Halligan

Hoppy

Capt. Richard Tracey

Intelligence officer

Captain Sandeman

Cmdr. Baddeley

Peter Malden

Bassy

Peter Thurston

Teddy Carson

Thompson

Bob Mervyn

Lord Rockingham