John Longden

as Narrator (voice) (uncredited)

as Detective Frank Webber

as Det. Insp. Kent

as Captain Johnson (uncredited)

as Chief Inspector Lomax

as Raven (uncredited)

as Charles Hornblower

as Charles Bentham

as Gen. Serpuhousky

as Ground Officer (uncredited)

as John Peters, a Pilot

as Det. Insp. Williams

as Man from China (uncredited)

as Speaker in Connaught Rooms

as Himself

as Passport officer

as The Abbot

as Munch

as Unnamed Character

as Prof. Hubbard

as Lanchester

as Detective

as The Abbot

as Richard Sandford

as Mortimer Digby

as Commander

as Jost Meertens

as Colonel O'Sullivan

as Metcalf

as Mr. Turner

as Inspector James

as Inspector Bliss

as Worthington

as Admiral

as Anthony Xavier 'Tony' Benedik

as Stuart Gordon

as Lord Ruskington

as Self (archive footage)

as Tod Jenkins

as Lieutenant Boris Boriskoff

as Mr. Kemp

as Jeremy Meraulton

as Bill Peel

as Dean Maitland

as Sherlock Holmes

as Police Inspector Merton

as Warder

as Simon Graves

as David / Martin

as Floquet

as Boyfriend

as Frank Dale

as Jeffrey

as Lt. Stanislaus von Zaminsky

as Harry Fielding

as Harry Crawford

as Hugh Bromilow

as No. 1

as Ivan

as Egeus

as Mercer

as Sir Thomas

as American Ambassador

as Inspector Slade

as De La Fayette