Editing Star Trek: The Original Series (section)

===Characters' cameo appearances in later series===
The sequel to the original series, ''[[Star Trek: The Next Generation]]'', which premiered in 1987, was set about 100 years after the events of ''TOS''. As that show and its spin-offs progressed, several ''TOS'' actors made appearances reprising their original characters:
* James Kirk disappears in 2293 during the maiden voyage of the [[USS Enterprise (NCC-1701-B)|''Enterprise''-B]] as seen in the film ''[[Star Trek Generations|Star Trek: Generations]]''. However, now chronologically 138 years old, but still only physically 60 years old, Kirk is recovered after spending 78 years in [[The Nexus (Star Trek)|The Nexus]], an alternative plane of existence, by ''Enterprise''-D Captain Jean-Luc Picard in the same film. Kirk's time in the 24th century is short, however; he is killed while helping to defeat Dr. [[Tolian Soran]].
* Spock, now a [[Vulcan (Star Trek planet)|Vulcan]] ambassador, goes underground in the [[Romulan Empire]] in hopes of fostering peaceful coexistence with the [[United Federation of Planets|Federation]] and reunification with Vulcan society ("[[Unification (Star Trek: The Next Generation)|Unification, Parts I and II]]"). He also appears in the 2009 reboot film where his science vessel originated from the 24th century–era of TNG. He ends up stranded in the 23rd century of the film series, where he settles on new Vulcan; in the sequel film ''[[Star Trek Into Darkness]]'', he is contacted by his younger self regarding the villainous [[Khan Noonien Singh]]. While not appearing in ''[[Star Trek Beyond]]'', it is mentioned in the film that the character has died, as an homage to the real-life passing of actor [[Leonard Nimoy]].
* Leonard "Bones" McCoy, now a crusty 137-year-old admiral and head of Starfleet's Medical Division, inspects the [[USS Enterprise (NCC-1701-D)|''Enterprise''-D]] before her first mission in "[[Encounter at Farpoint]]", briefly meeting the android officer [[Data (Star Trek)|Lt. Cdr. Data]], telling him, "Well, this is a new ship. But she's got the right name. Now, you remember that, you hear?{{nbsp}}... You treat her like a lady, and she'll always bring you home."
* Montgomery Scott, now chronologically 147 years old, but still only physically 72 years old after spending 75 years trapped in a transporter buffer, is rescued by the ''Enterprise''-D crew and resumes his life in "[[Relics (Star Trek: The Next Generation)|Relics]]". Working along with Chief Engineer [[Geordi La Forge]], Scotty uses some creative engineering to save the ''Enterprise''. A grateful Captain Picard lends him a shuttlecraft indefinitely.
* [[Sarek]], Spock's father, continues to be an ambassador for the next century until his final mission during which he and Captain Picard mind-meld together because Sarek shows signs of Bendii Syndrome ("Sarek"). He later dies suffering from this affliction, but not before giving [[Jean-Luc Picard|Captain Picard]] key information for locating his missing son ("Unification").
* [[Kang (Star Trek)|Kang]], [[Koloth]], and [[Kor (Star Trek)|Kor]], the three Klingons featured in "[[Day of the Dove]]" (Kang), "[[The Trouble with Tribbles]]" (Koloth) and "[[Errand of Mercy]]" (Kor), continue to serve the Empire well into the 24th century. They appear in the ''[[Star Trek: Deep Space Nine]]'' episode "[[Blood Oath (Star Trek: Deep Space Nine)|Blood Oath]]" in which Kang and Koloth are killed. Kor later appears in two more episodes: "[[The Sword of Kahless]]" and finally in "[[Once More Unto the Breach (Star Trek: Deep Space Nine)|Once More Unto the Breach]]" where, fighting in the Dominion War, he dies honorably in battle. A younger version of Kang, from the era of ''[[Star Trek VI: The Undiscovered Country]]'', later appears in the ''[[Star Trek: Voyager]]'' episode "[[Flashback (Star Trek: Voyager)|Flashback]]".
* [[Hikaru Sulu]], promoted to captain of USS ''Excelsior'' in ''[[Star Trek VI: The Undiscovered Country]]'', reprises his role from that performance in the ''[[Star Trek: Voyager]]'' episode "Flashback". [[Janice Rand]] also appears in that same episode.
* [[Arne Darvin]], the Klingon disguised as a human in "[[The Trouble with Tribbles]]", appears in the ''[[Star Trek: Deep Space Nine]]'' episode "[[Trials and Tribble-ations]]" with the intent to return to Deep Space Station K7 in 2267 and assassinate Kirk, whom Darvin blamed for his disgrace in the Klingon Empire.

Besides the above examples, numerous non-canon novels and comic books have been published over the years in which ''The Original Series'' era crew are depicted in ''The Next Generation'' era, either through time-travel or other means. In addition, many actors who appeared on ''The Original Series'' later made guest appearances as different characters in later series, most notably [[Majel Barrett]], who not only provided the voice for most Starfleet computers in episodes of every spin-off series (including a single appearance on ''[[Star Trek: Enterprise]]'', where the computers normally did not speak at all), but also had the recurring role of [[Lwaxana Troi]] in ''The Next Generation'' and ''Deep Space Nine''. [[Diana Muldaur]], a guest star in the episodes "[[Return to Tomorrow]]" and "[[Is There in Truth No Beauty?]]" of the original ''Star Trek'' series, played series regular Dr. [[Katherine Pulaski]] in the second season of ''Star Trek: The Next Generation''.