(written from a Production point of view)
Actor John Winston (born 24 October 1927; age 92) portrayed Commander Kyle through all three seasons of Star Trek: The Original Series. He reprised the role in Star Trek II: The Wrath of Khan. He also portrayed Kyle's mirror universe counterpart, in addition to his regular role, in "Mirror, Mirror", and voiced the ISS Enterprise's computer in the same episode. The Star Trek Encyclopedia (3rd ed., p. 562) mistakenly listed Winston as portraying an Argelian bartender in "Wolf in the Fold".
Winston filmed his scenes for "Tomorrow is Yesterday" on Tuesday 29 November 1966. He filmed his scenes for "Space Seed" on Wednesday 21 December 1966, and his scene for "The City on the Edge of Forever" on Friday 10 February 1967. He filmed his scene for "Catspaw" on Tuesday 2 May 1967, his scenes for "Who Mourns for Adonais?" on Wednesday 31 May 1967, his scenes for "The Doomsday Machine" on Thursday 22 June 1967, his scene for "Wolf in the Fold" on Wednesday 5 July 1967, and his scenes for "The Apple" on Friday 14 July 1967. He filmed his scenes for "Mirror, Mirror" on Tuesday 25 July 1967 and Thursday 27 July 1967, and his scenes for "The Immunity Syndrome" between Wednesday 25 October 1967 and Friday 27 October 1967. He filmed his scenes for "The Lights of Zetar" on Wednesday 6 November 1968. All of his scenes were filmed at Desilu Stage 9.
Winston appeared in the Time Tunnel pilot "Rendezvous with Yesterday" along with series regulars James Darren, Whit Bissell, Lee Meriwether, and guest voice actor Bart La Rue. He also appeared in an episode of the television show Max Headroom along with Matt Frewer, Concetta Tomei, George Coe, and W. Morgan Sheppard.
Winston, who lives in North Hollywood,  portrayed Captain Jeffries in the fan-made internet series Star Trek: New Voyages pilot episode "Come What May" (2004), which featured Trek actors James Cawley, Jeffery Quinn, Larry Nemecek, and TOS co-star Eddie Paskey.
Star Trek appearances Edit
- "Tomorrow is Yesterday" (Season 1)
- "Space Seed"
- "The City on the Edge of Forever"
- "Catspaw" (Season 2)
- "Who Mourns for Adonais?"
- "The Doomsday Machine"
- "Wolf in the Fold"
- "The Apple"
- "Mirror, Mirror" (also as Mirror Kyle and ISS Enterprise computer voice)
- "The Immunity Syndrome"
- "The Lights of Zetar" (Season 3)