(written from a Production point of view)
Barry Lynch (born 23 January 1944; age 74) is the New York-born actor who played Starfleet defector Stefan DeSeve in the Star Trek: The Next Generation sixth season episode "Face of the Enemy" in 1993. He also appeared in the video games Star Trek: Klingon and Star Trek: Borg and lent his voice to Star Trek: Klingon Academy.
His other television work includes guest appearances on Miami Vice, L.A. Law (with Corbin Bernsen, Larry Drake, and Lawrence Dobkin), and Judging Amy. He also co-starred with Roxann Dawson and Patrick Kilpatrick in the 1994 made-for-TV movie Greyhounds and with Miguel Ferrer and Brian Keith in 1995's The Return of Hunter.
His film credits include the 1992 horror movie Demonic Toys (with Larry Cedar), the 1992 action film Desert Kickboxer (with Robert O'Reilly), the 1993 direct-to-video horror movie Ticks (with Clint Howard), the 1994 action thriller Pentathlon (with David Soul and Daniel Riordan), and the 2001 direct-to-video science fiction movie Time Lapse (with Dina Meyer).