100 Code is an internationally co-produced Swedish crime drama series, developed by Bobby Moresco, that first aired on German premium channel Sky Krimi on May 14, 2015. The series, which stars German-born British actor Dominic Monaghan and the late Swedish actor Michael Nyqvist, is based upon Ken Bruen's 2014 novel Merrick, and follows Tommy Conley (Monaghan), an NYPD detective who travels to Stockholm to advise and investigate a particularly gruesome series of murders.

Dominic Bernard Patrick Luke Monaghan is a British-Irish actor. He is best known for playing Meriadoc "Merry" Brandybuck in Peter Jackson's film trilogy The Lord of the Rings (2001–2003), and Charlie Pace on the ABC television drama Lost (2004–2010).