(written from a Production point of view)
Robert Hitchcock (30 December 1925 – 9 October 1997; age 71) was an actor who appeared as a civilian engineer in the Star Trek: The Original Series first season episode "The Devil in the Dark". He received no credit for his appearance.
The son of a dental surgeon, Hitchcock grew up in Maryland, but eventually ended up in Hollywood and found employment as a background performers in films and television, starting in the mid-1960s. His prematurely white hair made him look ideal for roles like "Cop #1", "Businessman" or "Courtroom spectator". He worked steadily for two decades, appearing in over a hundred (mostly uncredited) parts.
His credits include television series like Batman (with Julie Newmar), The Invaders, I Dream of Jeannie, Bewitched, The Man from U.N.C.L.E., The Lucy Show and Here's Lucy (both starring Lucille Ball), Mannix, Mission: Impossible (with Leonard Nimoy), Hogan's Heroes, Kojak, Columbo, Starsky and Hutch (starring David Soul), Charlie's Angels, Battlestar Galactica (with George Murdock), The Rockford Files, Murder, She Wrote (with William Windom), and Dynasty (starring Joan Collins).
His movie credits include Torn Curtain (1966, with David Opatoshu, Walter Bacon, and Dick Cherney), the Elvis Presley films Double Trouble (1967, with Stanley Adams) and Live a Little, Love a Little (with Celeste Yarnall, Emily Banks, and Morgan Jones), Topaz (1969, with Dave Armstrong, Richard Derr, Dick Cherney, Lawrence Montaigne, and Robert Strong), Escape from the Planet of the Apes (1973, with Ricardo Montalban, William Windom, James B. Sikking, Shep Houghton, Janos Prohaska, Karl Bruck, and Walker Edmiston), Westworld (1973, with Majel Barrett, Alan Oppenheimer, Charles Seel, Paul Sorensen, Lou Elias, Charles Picerni, and Bill Catching), Blazing Saddles (1974, with David Huddleston, Dave Armstrong, Bill Catching, Dick Cherney, Hal Needham, Monty O'Grady, Jack Perkins, Al Roberts, George Sawaya, David Sharpe, and Bill Zuckert), The Towering Inferno (1974, with Elizabeth Rogers, Paul Comi, Steven Marlo, Sandra Gimpel, Dave Armstrong, and Robert Strong), Meteor (1979, with Brian Keith, Joseph Campanella, Michael Zaslow, Bibi Besch, Clyde Kusatsu, and Bill Couch, Sr.), and Planes, Trains & Automobiles (1987, with Michael McKean, Richard Herd, Bill Erwin, and William Windom).
He retired from the film industry in the late-1980s, and moved to Las Vegas, where died in 1997.