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Natasha "Tasha" Yar is a fictional character that mainly appeared in the first season of the American science fiction television series ''Star Trek: The Next Generation''. Portrayed by Denise Crosby, she is chief of security aboard the Starfleet starship USS ''Enterprise''-D and carries the rank of lieutenant. The character's concept was originally based upon the character of Vasquez from the 1986 film ''Aliens''. Following further development she became known first as Tanya, and then Tasha. Crosby had originally auditioned for the role of Deanna Troi, while Rosalind Chao became a favorite for Tasha. After Marina Sirtis auditioned for the role, the show's creator Gene Roddenberry decided to switch the roles for the actresses, with Sirtis becoming Troi and Crosby becoming Yar (Chao would later appear on the series in a recurring role as Keiko O'Brien). The character first appeared in the series' pilot episode, "Encounter at Farpoint". After Crosby decided to leave the show, Yar was killed by the creature Armus in "Skin of Evil", the 23rd episode of the season. She was written back into the show for a guest appearance in the third season episode "Yesterday's Enterprise", in which the timeline was altered so that she did not die, and again in the final episode of the series "All Good Things...", in events set prior to the pilot. She was described as a forerunner to other strong women in science fiction, such as Kara Thrace from the 2004 version of ''Battlestar Galactica'', while providing a step between the appearances of female characters in ''The Original Series'' to the command positions they have in ''Star Trek: Deep Space Nine'' and ''Voyager''. Questions were raised over the sexuality of the character, and it was thought that the events in the episode "The Naked Now" were designed to establish her heterosexuality. The manner of her first death was received with mostly negative reviews. One critic called it typical of the death of a ''Star Trek'' security officer, and the scene was also included in a list of "naff" sci-fi deaths. ==Concept and development== Inspired by Vasquez in ''Aliens'', the character was initially named "Macha Hernandez" and was the tactical officer of the ''Enterprise''.〔〔 This had been changed by the first casting call—issued on December 10, 1986—when she was given the position of security chief.〔Nemecek (2003): p. 13〕 The producers considered Jenette Goldstein, who had played Vasquez, for the role, but writer Dorothy Fontana pointed out that the actress "is not Latina. She is petite, blue-eyed, freckle-faced". The character was subsequently renamed "Tanya" around March 13.〔Nemecek (2003): p. 15〕 By the time that the writers' and directors' guide for the series was published, dated March 23, 1987, the character was named Natasha "Tasha" Yar.〔Roddenberry (1987): p. 6〕 Her surname was suggested by Robert Lewin, drawing inspiration from the Babi Yar atrocities in Ukraine during the Second World War.〔 Her biography stated that she was 28 years old, and confirmed her Ukrainian descent. She was planned to have a friendship with teenager Wesley Crusher, and was described in the guide as "treat() this boy like the most wonderful person imaginable. Wes is the childhood friend that Tasha never had."〔Roddenberry (1987): p. 30〕 In April 1987, Lianne Langland, Julia Nickson, Rosalind Chao, Leah Ayres and Bunty Bailey were each listed as being in contention for the role. Chao was a favorite candidate, while Denise Crosby was described as "the only possibility" for the character of Troi. The production staff were not keen on having two actresses in the bridge crew roles with similar physical types and hair colors, and so the team took account of the casting of the two parts together.〔Nemecek (2003): p. 18〕 The writers and directors guide described Yar as having a muscular but very feminine body type, and being sufficiently athletic to defeat most other crew members in martial arts.〔 After Crosby and Marina Sirtis had each auditioned for Troi and Yar respectively, Gene Roddenberry decided to switch the actresses and cast Crosby as Tasha Yar.〔 He felt that Sirtis' appearance was better suited to the "exotic" Troi.〔 Before the end of the first season, Crosby asked to be released from her contract as she was unhappy that her character was not being developed. She later said "I was miserable. I couldn't wait to get off that show. I was dying." Roddenberry agreed to her request, and she left on good terms.〔 The final episode she filmed was "Symbiosis", which was completed after Yar's death in "Skin of Evil". Her last scene was during the final act of the episode, in which she can be seen waving goodbye to the camera as the cargo bay doors close.〔Nemecek (2003): p. 56〕 After her departure, archive footage of Crosby as Yar was used in the episodes "The Schizoid Man" and "Shades of Gray". Crosby was happy to return in "Yesterday's Enterprise" due to the strength of the script, saying that "I had more to do in that episode than I'd ever had to do before." Prior to the episode being aired, the media had to be reassured that Yar was not returning in a dream sequence.〔 〕 Following her appearance in that episode, Crosby pitched the idea of Yar's daughter, Sela, to the producers.〔 She made her first appearance in this role in the two-part "Redemption", and appeared once more in another two-part episode, "Unification".〔 Denise Crosby returns twice more in the non-canon ''Star Trek'' universe. In 2007, she appears as an ancestor of Tasha Yar, Jenna Yar, in "Blood and Fire", an episode of the fan produced series ''Star Trek: New Voyages''. Tasha Yar was written into ''Star Trek Online'' as part of the three-year anniversary celebration in 2013. Denise Crosby recorded audio for the game, in scenes set after those in "Yesterday's Enterprise". 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tasha Yar」の詳細全文を読む スポンサード リンク
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