He has won three awards for his critically acclaimed performance as Dennis Langley in
The Eleventh Hour. Since moving to
Los Angeles, he has also starred in the
American shows
24 as
Ronnie Lobell,
Desperate Housewives as Mr. Hartley, and
Big Love. He has also made several film appearances: as Jack Shepard in
Frequency, Brian in 1998's
Babyface, Stephen in the 2005 film
Sabah, and as Ray in
Grown Up Movie Star (which he co-produced). Other roles include John in the film adaptation of
The Robber Bride and a lawyer in
Lost. He had a recurring turn as Joey Henrickson, a former
NFL player and brother of Bill Henrickson, the main character in the HBO series
Big Love. He had a brief role on the short-lived but acclaimed FX series
Terriers. He starred as
agoraphobic chess genius Arkady Balagan in the
Showcase original series
Endgame. In the fall of 2011, he starred as the future first Canadian prime minister Sir
John A. Macdonald in the CBC TV movie
John A.: Birth of a Country. His performance won him a
2013 Canadian Screen Award for Best Performance by a Lead Actor in a television film or miniseries. In 2012, he appeared in an episode of
King. He has appeared in three episodes of
Republic of Doyle as Carl Maher. He appeared in the
Canadian film The Disappeared in the fall of 2012. He played in an episode of CBS's
Vegas as FBI agent Patrick Byrne in 2013. In 2013, he began the recurring role of Isaac Taft on the Canada-based Syfy series
Lost Girl. 2014 saw Doyle portray Aleksandre Belenko on
Covert Affairs. He portrays Will Graham's defense attorney Leonard Brower on NBC's
Hannibal, appeared as Chief of Police
Vern Thurman on
Fargo, In 2015, he appeared in a recurring role on
This Life as high school principal, Andrew Wallace, and Sadavir Errinwright on the
Syfy series
The Expanse. ==Personal life==