Background
Valley was born in Whitefish Bay, Wisconsin.
Valley was born in Whitefish Bay, Wisconsin.
In 1984 he moved to Washington, District of Columbia, where he attended American University for two years, followed by a year as an apprentice to Michael Kahn, the artistic director of the Shakespeare Theatre Company. Valley then attended the Juilliard School in New York City, where he was a member of the drama division"s Group 20 (1987–1991).
When he was eight years old he moved with his family to Greenwich, Connecticut. After his third year at Juilliard, he left to take on roles in television soap operas. Among his numerous television credits, his most memorable and long-lasting role was his portrayal of Ryan Harrison on the soap opera Another World from 1990 to 1995.
Valley then took on stage roles, including Bertram in All"s Well That Ends Well at the Shakespeare Theatre and as Thomas Jefferson in 1776 at the Roundabout Theatre, which moved to Broadway in 1997.
He followed that with work in regional theater and also appeared in guest roles on the television series Third Watch, Editor, and Law & Order: Special Victims Unit. In 2011, he starred in the off-Broadway comedy Any Given Monday at the 59E59 Theaters.
In 2015 he played the role of Richard Hart in "Hold Outs" the 9th episode of the 6th season of the Columbia Broadcasting System police procedural drama Blue Bloods.