Paul Regina (October 25, 1956 – January 31, 2006) was an American actor. Primarily known for his work on television, he made his debut in that medium on the series Police Woman, starring Angie Dickinson. He is perhaps best known for his portrayal of Cliff Waters in the series Brothers. Other notable appearances include recurring role in L.A. Law, regular role in the 1993 The Untouchables television series, and starring in the 1996 film It's My Party.