|Date of birth||24 November 1964|
|Origin||Castro Valley, California, USA|
Garret Dillahunt is the actor who portrays Matthew Ross.
Dillahunt began pursuing television and film roles after spending years on and off Broadway. He appeared as a regular in several short lived series on ABC and Showtime, and landed guest spots on TV shows such as The X Files and NYPD Blue as well as others, before playing two distinctly different characters on the HBO series Deadwood: Jack McCall in 2004 and Francis Wolcott in 2005.
Dillahunt portrayed Steve Curtis for three seasons on ER (2005–06). Later roles included Dr. Michael Smith on HBO's John From Cincinnati; Cromartie and John Henry on FOX's Terminator: The Sarah Connor Chronicles; Roman Nevikov, a Russian gangster, on NBC's Life; and Mason Turner, a paralyzed serial killer on Criminal Minds. He played Simon Escher in the Burn Notice third season finale airing March 4, 2010 on the USA, later reprising the role in the show's fourth season.