S02E23-West in morgue

Arthur West Elementary intertitle MI6 Analyst

Character Information
Status: Deceased
Actor: Uncredited
First Appearance: "Art in the Blood"
Last Appearance: "The Grand Experiment"
Family: Marion (wife)
Episode Count: 2
At one time, he was a valued resource. Kind of man who could spot patterns in the chatter between suspicious parties. Patterns that could raise flags, save lives.
Tim Sherrington, "Art in the Blood".

Arthur Cadogan West was an analyst for the British Intelligence department MI6. He possessed a degree in Political Science and spent four years in the British military.


Season Two

Mycroft's MI6 handler, Tim Sherrington, asks Sherlock to work on a case of an ex-MI6 analyst, Arthur West, who has been murdered. Once a valued resource, West became erratic due to being bipolar, was released from MI6 and moved to NYC with his wife, Marion, who he then divorced. Even though retired, he provided MI6 with leads that never panned out. Recently, he insisted he had vital information he'd only provide in person, but was murdered. At the Morgue, it's discovered that his arms are missing. Marion reveals she tattooed numbers on Arthur's arms in infrared ink, doesn't know what the numbers mean and that Arthur was convinced there is a mole in MI6. ("Art in the Blood") Sherlock discovers that the numbers are metadata of the location and dates that calls were made to the mole. Mycroft confirms he was at the locations on the dates and Watson realizes Sherrington was as well, that he's the mole and he killed Arthur. ("The Grand Experiment")

S02E23-Arthur West arms
He said they were important...


Elementary intertitle Elementary Characters
Main Characters
Sherlock HolmesJoan WatsonCaptain Thomas GregsonDetective Marcus Bell
Recurring Characters
AlistairAntoniaAthena and MinervaGeneral AlveroHenry BaskervilleOlga BerezhnayaJonathan BloomRoy BookerAgent BurkeDamon ClarkClydeGina CortesFrank Da SilvaDuaneCaptain DwyerElloryEveryoneAgent GephardtDr. GrannisChristopher GrayDel GrunerDetective GuzmanHalconEmily HankinsDr. Eugene HawesFiona HelbronWilliam HullShinwell JohnsonEmil KurtzCassie LenueGareth LestradeADA Nelson LewisAlfredo LlamosaAgent MallickMarchefElana MarchMargaretAgent McNallyPatrick MeersMidnight RangerChantal MilnerAndrew MittalSanthosh MittalSebastian MoranJamie MoriartyAgent MullerDetective NashIsaac ProctorRandyOscar RankinCandace ReedOdin ReichenbachRomulusMichael RowanTim SherringtonTall BoyJoshua ViknerSir James WalterArthur WestAgent WhitlockTyus WilcoxKitty Winter
The Irregulars
Mr. BriggsC.Harland EmplePetros FrankenGayMs. HudsonJulius KentLucMasonThe NosePhil SimmsAgatha SpurrellTeddy
ArchieAndre BellChivonnePaige CowanKayden FullerCheryl GregsonHannah GregsonMay HolmesMorland HolmesMycroft HolmesEstella LlamosaHenry WatsonMary WatsonOren WatsonLin Wen
Minor Characters
The ActuaryMason BaldwinAnne BarkerEdwin BorsteinJack BrunelleLucas BundschJoey CastoroWade CrewesLiam DanowRyan DeckerViolet de MervilleThe DetectivesKathryn DrummondHoward EnnisMistress FeliciaIan GaleTrent GarbyDevon GasparDanilo GuraZoya HashemiDonna KaplanAdam KemperRhys KinlanRuslan KrasnovIris LanzerGwen and Olivia LynchNigella MasonDorian MollTy MorstanPamDana PowellRemusPaula ReyesChris SantosJennifer SaylesShauna ScottSkylerWilson TragerHeather VanowenCassandra WalkerAaron Ward
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