as NSA

as Frank Parris / Oscar Berlin

as Earl of Sandwich

as Earl of Sandwich (voice)

as Sir John Gielgud

as Isaac Newton

as Sherlock Holmes

as Self

as NSA

as Larry Grayson

as Jacob Marley

as

as Sherlock Holmes

as Doctor Maclean

as Ivor Montazac

as Mr. Wickens

as Henry Huxley

as Self

as Mr Murphy

as Donald

as The Man

as Self

as Self

as Himself

as Himself - Presenter

as Frank Renfield

as Himself

as Mr. Harmony

as Peter Mandelson (voice)

as Radio Announcer (voice)

as Lord Marlborough

as George III

as Various Characters

as Himself - Presenter

as Giles Winslow

as Ronald Hall

as The Captain

as Sir Robert Cecil

as Narrator

as Dr. Landers

as Prince Regent

as Professor Robert Jan van der Pelt

as Joel

as Billy Matlock

as Colonel Theakes

as Himself

as Mycroft Holmes

as Dettweiler

as Rich

as Himself

as Steven Crosswell

as Self

as Dr. Quentin Questa (voice)

as Peter Mandelson

as Stephen Gardiner

as Major Benjamin 'Benjy' Flint

as Self

as Self

as Himself - Narrator (voice)

as Callum

as Self

as Menenius Agrippa

as Himself / Mark Gatiss

as Presenter

as Self

as Himself

as Narrator

as Self - Host

as Self

as Self - Actor and Writer

as Mr Jackson

as Tycho Nestoris

as Henry Rackham Junior

as

as Cavor

as Self - Presenter

as Himself

as Mycroft Holmes

as Self

as Self / Mycroft Holmes

as Malcolm McLaren

as Himself

as Self

as Ernest Dunks

as

as

as Duff Purves

as Mr. Snow

as The Curator

as Colonel Black

as Self - Contestant

as John Dashwood

as PC Butcher

as Robert Louis Stevenson

as Apsley Cherry-Garrard

as Himself

as (segment "Don't") (uncredited)

as Roddy McDowel

as Rat

as Hilary Briss / Mickey Michaels / Val Denton / Les McQueen / Lance Longthorne / Alvin Steele / Phil Proctor / Mrs Beasley / Mick McNamara / Neds / Lotte Lipp / Brian Morgan / Dr Chinnery / Iris Krell / Bobbin

as

as Johnnie Cradock

as Bamber Gascoigne

as Jakki (voice)

as Himself

as Ping-Pong Player

as

as Miss Blight (voice)

as Self - The League of Gentlemen

as Various Characters

as Additional Vogon Voices

as John Paterson

as Self

as

as Gantok

as Richard Lazarus

as The Captain

as Narrator

as Ronald Hawes

as Self

as Kenyon

as Terry Scanlon

as Self

as Radio Presenter With 'Spaceship' Theory / Wildlife voiceover (voice) (uncredited)

as Jeremy

as Peter

as

as Glenn Bulb

as Self

as House Agent

as

as Self

as Viking (voice)

as Louis Aragon

as Teddy - Agent

as John Trant

as various

as Hang Man Chang

as Self

as Porter

as

as

as The Doctor

as Mark

as Mr. Borusa

as Agent

as

as Junior Detective

as

as

as Rev Giles Shawcross

as Mr. Emerson

as Self - Interviewer

as Georgie

as

as Bowmer

as Dr. William Bruffin

as Diner Manager

as Leonard Boynton