
Ritchie Coster
Acting
Ritchie Coster (born 1 July 1967) is an English 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!.
Known For

Law & Order: Special Victims Unit
1999 · tv

Law & Order
1990 · tv

CSI: Crime Scene Investigation
2000 · tv

The Blacklist
2013 · tv

The Walking Dead
2010 · tv

Person of Interest
2011 · tv

True Detective
2014 · tv

Tulsa King
2022 · tv

Law & Order: Criminal Intent
2001 · tv

Sex and the City
1998 · tv

Billions
2016 · tv

The Dark Knight
2008 · movie

Third Watch
1999 · tv

The Flight Attendant
2020 · tv

Watson
2025 · tv

American Gangster
2007 · movie

FX: The Series
1996 · tv

Hack
2002 · tv

Creed
2015 · movie

Law & Order: Trial by Jury
2005 · tv

Blackhat
2015 · movie

John Adams
2008 · tv

HAPPY!
2017 · tv

The Thomas Crown Affair
1999 · movie

The Tuxedo
2002 · movie

Kidnapped
2006 · tv

The Sentinel
2006 · movie

Let Me In
2010 · movie

The Bounty Hunter
2010 · movie

Beautiful People
2005 · tv