was born and raised in London, England where he received his training at Guild Hall School of Music and Drama. His theatrical credits are as varied as playing Macbeth in Macbeth (Center Stage), Lopakin in The Cherry Orchard (Williamstown) and Teddy Lloyd in The Prime of Miss Jean Brodie (Off-Broadway at The New Group opposite Cynthia Nixon). He has guest starred on every major television series filmed in New York including all “Law & Order” franchises as well as “Sex and the City,” “CSI,” “Kidnapped,” “The Black List,” “True Detective,” “Shades of Blue” and “Billions.” Coster most recently starred in the HBO series “Luck” and the SyFy series “Happy!.” His television movies include starring roles in Rear Window (opposite Christopher Reeve), Traffic and the miniseries John Adams. His most recent film credits include The Sentinel, American Gangster (opposite Russell Crowe) and The Dark Knight (opposite Heath Ledger). He starred with Chris Hemsworth and Viola Davis in Michael Mann’s Blackhat as well as Creed (opposite Sylvester Stallone). He made his starring film debut in The Tuxedo opposite his boyhood idol, Jackie Chan.