Ritchie Coster (born 1 July 1967) is an English character actor. He is best known for playing the roles of Dietrich Banning in The Tuxedo (2002), the Chechen in The Dark Knight (2008), Elias Kassar in Blackhat (2015), Mayor Austin Chessani on the second season of the HBO anthology television series True Detective, and Francisco Scaramucci/Mr. Blue on the SyFy television series Happy! Since 2025, he has been part of the main cast of the CBS drama series Watson.

Career

Coster has played various roles throughout his career.

Filmography

Film

YearTitleRoleNotes
1999The Thomas Crown AffairJanos
2000The PhotographerAttacker #1
BaitBuyer
200115 MinutesNews Stand Vendor
2002Pipe DreamPascal
The TuxedoDietrich Banning
2006The SentinelThe Handler
2007American GangsterJoey Sadano
2008The Dark KnightThe Chechen
2010The Bounty HunterRay
Let Me InMr. Zoric
Pete Smalls Is DeadHal Lazar
2014By the GunTony Matazano
RoseSamuelShort film
2015BlackhatElias Kassar
CreedPete Sporino
2016The Great & the SmallRichie
2017SubmissionDean Bentham
2019The BygoneBeckett Summer
2021After YangRuss
2024King IvoryMickey Greene

Television

YearTitleRoleNotes
1997Dellaventura—N/aEpisode: "Hell's Kitchen"
1997–1998New York UndercoverKeith Draper and Flannagan2 episodes
1998F/X: The SeriesJimmy HickmanEpisode: "Reaper"
Rear WindowJulian ThorpeTV movie
1999Law & Order: Special Victims UnitCarlo ParisiEpisode: "...Or Just Look Like One"
Third WatchRudyEpisode: "Sunny, Like Sunshine"
2000Sex and the CityCaleb McDougalEpisode: "Don't Ask, Don't Tell" Credited as Richie Coster
2000–2001As the World TurnsGabriel FrankUnknown episodes
2000–2006Law & OrderJorgan Stern Mark Bruner DEA Agent Kevin Almonte3 episodes
2002–2009Law & Order: Criminal IntentSimon Matic and Jack Taylor2 episodes
2002HBO First LookHimselfEpisode: "'The Tuxedo': Tailor Made for Jackie Chan"
2003HackNick Trepov2 episodes
2004TrafficFazalMiniseries 3 episodes
With God on Our Side: George W. Bush and the Rise of the Religious Right in AmericaHimself (Narrator)TV movie
2005Jonny ZeroGarret / GarrettSeries regular; 10 episodes
Law & Order: Trial by JuryShane LucasEpisode: "Skeleton"
2005–2006Guiding LightNate / Alfred4 episodes
Beautiful PeopleTyler Lustig3 episodes
2006KidnappedBradwell ScottEpisode: "Sorry, Wrong Number"
2008John AdamsCaptain PrestonEpisode: "Join or Die"; Miniseries
CSI: Crime Scene InvestigationArthur BlistermanEpisode: "Art Imitates Life"
2009VirtualityDr. Jimmy JohnsonTV movie
2011–2012LuckRenzoSeries regular; 9 episodes
2011Person of InterestAssassinEpisode: "Ghosts"
2012Luck: A Day at the RacesHimselfTV movie
2013The BlacklistAnslo Garrick2 episodes
2014Babylon FieldsErnieTV movie
2015HBO First Look: BlackhatHimselfTV movie
Blackhat: On Location Around the WorldHimselfDocumentary video
Blackhat: Creating RealityHimselfDocumentary video
True DetectiveMayor Austin Chessani7 episodes
2017BillionsDonald Thayer3 episodes
Shades of BlueMichael Bianci7 episodes
2017–2019Happy!Francisco "Mr. Blue" Scaramucci, OrcusMain role
2020The Flight AttendantVictor3 episodes
2021The Walking DeadPope4 episodes
2022–2023Tulsa KingCaolan Waltrip7 episodes
2025–2026WatsonShinwell JohnsonMain cast
Key
†Denotes series/miniseries that have not yet been released

Video games

YearTitleVoice role
2003Midnight Club 2Blog
2007BioShockBill McDonagh

Notes

External links