
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!.

The Dark Knight
2008 · as Chechen

American Gangster
2007 · as Joey Sadano

Let Me In
2010 · as Mr. Zoric

Creed
2015 · as Pete Sporino

The Thomas Crown Affair
1999 · as Janos

The Tuxedo
2002 · as Dietrich Banning

Blackhat
2015 · as Elias Kassar

15 Minutes
2001 · as News Stand Vendor

After Yang
2022 · as Russ

The Bounty Hunter
2010 · as Ray

The Sentinel
2006 · as The Handler

Bait
2000 · as Buyer

Virtuality
2009 · as Dr. Jimmy Johnson

King Ivory
2025 · as Mickey Greene

Westhampton
2026 · as Film Chair

Rear Window
1998 · as Julian Thorpe

Rumble Through the Dark
2023 · as Baron

The Photographer
2000 · as Attacker #1