History Trivia / StarTrekS1E29OperationAnnihilate

** Peter Kirk visits the bridge after his recovery from the alien parasites, wearing a child-sized version of a command division Starfleet uniform with lieutenant stripes, and sitting in the captain's chair. It is also revealed that, instead of moving back to Earth to live with his grandparents[[note]]It is not specified whether or not this refers to his paternal grandparents - and therefore Kirk's parents[[/note]], Peter is going to be adopted, by a colleague of his father, and stay on Deneva. After Peter leaves, Scotty tells Kirk that his nephew shall go to Starfleet Academy. Kirk replies that he hopes he won't, not wanting him to face a similar decision like he just had to make.

** Peter Kirk visits the bridge after his recovery from the alien parasites, wearing a child-sized version of a command division Starfleet uniform with lieutenant stripes, and sitting in the captain's chair. It is also revealed that, instead of moving back to Earth to live with his grandparents, Peter is going to be adopted, by a colleague of his father, and stay on Deneva. After Peter leaves, Scotty tells Kirk that his nephew shall go to Starfleet Academy. Kirk replies that he hopes he won't, not wanting him to face a similar decision like he just had to make.

* DeletedScene: Viewers of the episode as aired are often left with the question of [[WhatHappenedToTheMouse what happens to Kirk's nephew]]. A scene was shot, but cut, explaining this: Sam Kirk's business partner has offered to adopt Peter, who chooses to live with him and stay on Deneva rather than move to Earth to live with his grandmother (whether this is also Kirk's mother is not stated).

* WorkingTitle: ''Operation: Destroy''.

* AscendedFanboy: Kirk's yeoman in the episode is portrayed by Maurishka Taliaferro, who was a popular and sought-after model in the 1960s. As she was also a fan of the show, she was able to talk the producers into giving her a part.

** In the novelization, they find the parasite's home planet and destroy it rather than using ultraviolet light. This was based on an earlier script draft that had The ''Enterprise'' [[ItsTheOnlyWayToBeSure destroy ''Deneva and all of its inhabitants'']].

** In the novelization, they find the parasite's home planet and destroy it rather than using ultraviolet light. Creator/JamesBlish just couldn't take the FridgeLogic in the story as broadcast.

* WhatCouldHaveBeen: The first draft script did not feature Kirk's brother and his family. In that version, a Denevan woman named Aurelan was in love with a young man named Kartan, who flew his ship into the Sun to destroy the creatures. Aurelan and her father were not infected, and helped the Enterprise crew in their research.

* DeletedScene: Viewers of the episode as aired are often left with the question of [[WhatHappenedToTheMouse what happens to Kirk's nephew]]. A scene was shot, but cut, explaining this: Sam Kirk's business partner has offered to adopt Peter, who chooses to live with him and stay on Deneva rather than move to Earth to live with his grandmother (whether this is also Kirk's mother is not stated).

* ActingForTwo: Shatner does this a lot, but his brief appearance as the corpse of Sam Kirk marks the only time that he plays a character who is ''not'' either James T. Kirk or someone (or some''thing'') mimicking or inhabiting the body of James T. Kirk.

* ActingForTwo: Shatner does this a lot, but his brief appearance as the corpse of Sam Kirk marks the only time that he plays a character who is ''not'' either James T. Kirk or someone (or some''thing'') mimicking or inhabiting the body of James T. Kirk.