(written from a Production point of view)
Mark Wilson (9 November 1957 – 16 January 2016; age 58) is an actor who appeared in two episodes of Star Trek: The Next Generation as a background performer. He first portrayed a holographic bystander in the second season episode "Elementary, Dear Data" and one year later a Klingon High Council member in the third season episode "Sins of the Father".
Prior to his Star Trek work, Wilson had guest roles in the television series Ryan's Hope (1983), The Love Boat (1983), Dynasty (1983, with Joan Collins, Robert Symonds, Don Eitner, and Scott Leva), and All My Children (1986). He appeared in the comedy Hardbodies (1984, with Kane Hodder), the television comedy The Cartier Affair (1984, with Joan Collins, Ed Lauter, Charles Napier, Raymond Singer, and John Bloom), the television movie The Pirates of Penzance (1986), and the action film Arizona Heat (1988, starring Denise Crosby and with Ken Lesco).
Further acting credits include The Young Riders episode The Blood of Others (1991, with Yvonne Suhor, Anthony Zerbe, William Lucking, and Christopher Pettiet), the television mystery film Telling Secrets (1993, with Christopher McDonald, Nicolas Surovy, Andrew Robinson, Anne Haney, and Don McManus), the television action film Personal Vendetta (1995), and the Baywatch Nights episode The Creature (1996, with Vaughn Armstrong and Christopher Michael).