(written from a Production point of view)
Michael Paul Schoenbrun (5 September 1938 – 5 June 1993; age 54) was the Unit Production Manager on Star Trek III: The Search for Spock. He also worked in the production department of the Star Trek: The Next Generation second season episode "The Outrageous Okona" and a noted comedian was named after him.
Schoenbrun held a variety of executive production posts throughout his career, including head of Paramount Television and senior vice president of Paramount Pictures. He managed the productions of such Paramount-owned series as Mission: Impossible and Mannix, both of which, like Star Trek: The Original Series, were produced by Desilu Studios. As head of Paramount Television, he was executive in charge of a number of productions, including the acclaimed 1983 mini-series The Winds of War.
From 1991 through 1993, Schoenbrun was senior vice president in charge of production for Gracie Films. During this time, he oversaw production on the immensely popular animated series The Simpsons. In addition, Schoenbrun was on the board of directors of the Directors Guild of America training program. He was holding these posts when he died of pancreatic cancer on 5 June 1993.