John Douglas "J.D." Walsh (born December 24, 1974) is an American actor, writer, producer, and improv comedy leader. He is best known for his role as Gordon on Two and a Half Men. He wrote, produced and directed the show Battleground whose pilot episode was funded by FOX. Walsh lives in Van Nuys, California, with his wife, Deirde and their three children. Walsh founded Ultimate Improv, an improvisational comedy located in Westwood, Los Angeles, California.