Peter Jurasik is an American film and television actor best known for his roles in "Babylon 5" and "Hill Street Blues. " Jurasik's early interest in acting led him to Off-Broadway, where he performed in numerous productions, and to several contracts with touring theater companies. He relocated to Los Angeles in 1975 and landed his first TV role in an episode of the 1977 sitcom "Family." He worked steadily in TV series like "Barney Miller" and "M.A.S.H.," and in 1982 he landed a supporting role in the cult sci-fi film "TRON." The following year Jurasik landed one of his most famous roles, police informant Sid the Snitch on the critically acclaimed police drama "Hill Street Blues." After the show ended in 1987, Jurasik joined the cast of the short-lived spin-off series "Beverly Hills Buntz," landed a recurring role on the family sitcom "Dear John," and appeared in the adoption comedy film "Problem Child." From 1994 to 1998 he portrayed Centauri patriot Londo Mollari in the sci-fi series "Babylon 5," and saw his at-first inconsequential character slowly became a major player in the show's storyline. Jurasik, who is also a drama professor at the University of North Carolina, has since appeared in numerous hit TV series, including "Dawson's Creek," "3rd Rock from the Sun," and "Sliders."