After completing his education at the Military Academy at West Point in 1987 Valley was then for five years in Germany, and there mainly in Berlin, stationed. Since then, he is fluent in German. During his military career, he also participated in the Second Gulf War. In Berlin, he was spotted by a casting agent and was given his first role in the 1992 film version ... and McEwan The Innocent by John Schlesinger.
Valley has a daughter born in 1987. In December 2008, Valley married his fellow actress Anna Torv in the series Fringe - represented his partner limiting cases of the FBI. In April 2010 it was announced that both are now living separately.
The role of Jack Deveraux, the Valley in the American soap opera Days of Our Lives played, earned him his first success. This was followed by guest appearances in several series and minor roles in movies. In the short-lived series Keen Eddie, he played the lead role for which he 2003 for a Teen Choice Award for Choice TV Breakout Star - was nominated times.
Valleys most famous role is that of the lawyer Brad Chase Boston Legal, which he played from 2004 to 2007. For this he was nominated in 2006, 2007 and 2008 together with the series ensemble three times for a Screen Actors Guild Award. In JJ Abrams ' series Fringe - limiting cases of the FBI he put John Scott dar. From 2010 Valley played the lead role of Christopher Chance in the series Human Target, which is based on the eponymous comic book series came in two seasons.
From September 2011, Valley was once again to check on Boston Legal as a lawyer in a David E. Kelley series, Harry's Law, he played from the second season of the lead role of Oliver Richard. After Harry 's Law was canceled after the second season, Valley took over in the third season of Body of Proof a major role.