Education
He graduated from Dartmouth College in Hanover, New Hampshire in 1997.
He graduated from Dartmouth College in Hanover, New Hampshire in 1997.
Harbour went to Byram Hills High School in Armonk, New York along with other actors Sean Maher and Eyal Podell. Harbour got his professional start on Broadway in 1999 in the revival of The Rainmaker and made his television debut in 1999 in an episode of Law & Order ("Patsy"), playing a waiter. He appeared again in 2002 in an episode of Law & Order: Special Victims Unit.
He played the recurring role of MI6 agent Roger Anderson in the American Broadcasting Company television series Pan American
He is known for his role as Central Intelligence Agency agent Gregg Beam in Quantum of Solace, as Shep Campbell in Revolutionary Road, and as Russell Crowe"s source in State of Play. He also received praise for his role as Paul Devildis on a 2009 episode of Law & Order: Criminal Intent.
His other film credits include Brokeback Mountain, The Green Hornet, End of Watch and Between United States In 2013, he played a small role of a head doctor in the American television series based on the classic detective Sherlock Holmes, Elementary.
He has also played the recurring role of Elliot Hirsch in The Newsroom since 2012.
In 2014 he joined the main cast of the historical drama series Manhattan. He previously dated actress Julia Stiles from 2011-2012, who appeared with him on the series Blue, in addition to the film Between United States 2005 Tony Award: Best Featured Actor in a Play, Who"s Afraid of Virginia Woolf?.