The son of an actor of the same name, Paul Guilfoyle has appeared in several major film productions, portraying a wide variety of supporting characters. He is a member of the prestigious Actor's Studio, as well as being a longtime resident of New York. He also has numerous stage credits to his name. However, the actor is best known for his role in the crime drama CSI: Crime Scene Investigation. He joined the show in its first season in 2000 as L.V.P.D Captain James "Jim" Brass, and continued to work on the show throughout the 2000s and early 2010s.