(written from a Production point of view)
Robert "Bob" Sordal served as a Key Grip on Star Trek: The Motion Picture, and later as First Company Grip on Star Trek: The Next Generation from the start of season three through "Realm of Fear", the second episode of the sixth season. He then moved on to Star Trek: Deep Space Nine, while Steve Gausche replaced him on TNG. After two seasons on DS9, Sordal moved to Star Trek: Voyager and Gausche to DS9. Sordal only worked on the first season of Voyager before retiring from the business.
Before signing onto The Next Generation in 1989, Sordal had worked as a grip on feature films for over a decade. His first film was the 1976 remake of King Kong, whose cast included Rene Auberjonois, Ed Lauter, and Garry Walberg. Sordal's subsequent credits include Who'll Stop the Rain (1978, starring Jonathan Banks, David Opatoshu, Gail Strickland, and Anthony Zerbe), The Competition (1980, featuring James B. Sikking), Body Heat (1981), Annie (1981), Young Doctors in Love (1982, starring Michael McKean and Saul Rubinek and featuring Ed Begley, Jr., Charlie Brill, Hamilton Camp, and Deborah Lacey), All of Me (1984, featuring Richard Libertini), The Man with One Red Show (1985, featuring Gerrit Graham, David L. Lander, and David Ogden Stiers), Midnight Run (1988), My Stepmother Is an Alien (1988, featuring Tony Jay and Suzie Plakson), and Ghostbusters II (1989, featuring Harris Yulin, Aaron Lustig, and Christopher Neame).