Valley obtained his first role, on The Innocent (1993), while serving in the U.S. Army in Germany. He landed the role of "Father Pete" on Another World in 1993. He later took over the role of Jack Deveraux on the NBC Daytime soap opera Days of Our Lives from 1994–97. In 2003, Valley played Detective Eddie Arlette, an American police officer in London, on the short-lived Keen Eddie.