(written from a Production point of view)
Familiar, pint-sized actor and former vaudevillian Elisha Vanslyck Cook, Jr. (26 December 1903 – 18 May 1995; age 91) had a prestigious Hollywood career spanning nearly six decades. However, he is most known and loved by Star Trek fans as Samuel T. Cogley in the Star Trek: The Original Series first season episode "Court Martial".
Outside of Trek, Cook is best remembered for his frequent appearances as aged mobster Ice Pick on the hit television series Magnum, P.I., from 1983 through 1988. He also had guest-starring roles on multiple other television shows, including Gunsmoke, Perry Mason, The Untouchables, Wagon Train\, The Wild Wild West, Bonanza, and Batman. This last is notable, as the two-part episode "Ice Spy/The Duo Defy" had him acting opposite Leslie Parrish.
He also had roles in such popular made-for-TV movies as The Night Stalker (1972, with fellow TOS guest stars Stanley Adams and Barry Atwater) and 'Salem's Lot (1979, with David Soul, Julie Cobb, Barbara Babcock, and Reggie Nalder). In 1982, he co-starred with fellow Star Trek alumni Diana Muldaur, Roger C. Carmel, Marc Lawrence, Michael Pataki, and Georgia Schmidt in the TV movie .
He also co-starred in several classic feature films, including The Maltese Falcon (1941), The Big Sleep (1946), Shane (1953), The Killing (1956), the original House on Haunted Hill (1959), and Rosemary's Baby (1968) with Gail Bonney. He also received direction from Robert Wise in the classic 1947 film-noir Born to Kill, co-starring Lawrence Tierney.
Cook's other notable films include I, the Jury (1953, starring Biff Elliot), (1969, with John Anderson, John Fiedler, and Bill Zuckert), Blacula (1972, starring William Marshall in the title role), Emperor of the North Pole (1973, with Hal Baylor, Sid Haig, and Vic Tayback), (1973, with Joanna Cassidy and Roy Jenson), Steven Spielberg's 1941 (1979, with Jerry Hardin, David L. Lander, Michael McKean, and Dick Miller), and (1981, with Salome Jens, David Ogden Stiers, and Noble Willingham).
Cook died of a stroke in Big Pine, California in 1995 at the age of 91.