Lydia (no last name given) was a 23rd century Human woman who served Starfleet as an engineering ensign assigned to Federation starship USS Enterprise in the 2270s.

Lydia was enjoying an intimate moment with her boyfriend, Cyron Williams, in his quarters when the two engineering ensigns were attacked by a werewolf, which vanished when Williams threw a bottle of Saurian brandy at it. (TOS comic: "The Haunting of Thallus!")

USS Enterprise (NCC-1701) engineering personnel
under Rasmussen & April BrownellChangChoFourrierGraffHartKursleyMarvickMcCormickNumber OnePowellRobertsSaffireThompsonThorvaldsenWood under Pike AbdelnabyArs DanBarryBrienHazarstennajGraceBurnsteinPitcairnLouvierSamsonScottSpahnvan HansenWrightYamata UFP emblem image. USS Enterprise operations assignment insignia.
under Kirk (1st 5-year mission) AndresAndrewsAntonoffAzizBarnhartBatesBeckerBerkeleyBregmanBurdockBurrowsCampeasCelauxChalmersChatusramChoColfaxCorcoranCormanCortezCrandallCriderCritelliDastagirDavisDeLongdeRoosDeSalleDevlinDixonDouglasDuboisDuchampsEdwardsFrostHarperHarrisonD. GablerF. GablerGallowayGardnerGarvinGordonGrantGreenHartHazarstennajHolgerssonJacobsJamesJenkinsKaplanKopkaKrenskyKyleLanzLefebreLemliLeslieLewisLopezLoupasLylesMacPhersonMarkhamMassachiC. MastersV. MastersMarkhamMattMcConelMcDuffMcPheeM'deguMikhalisMillerMuellerNagataNasonNikkatsuNovaObaO'NeilOrsayPetersonRamirezRennerRileyRivieraRogersRostofskiRussSatterfieldSchirmeisterScottSenifSepopoaShallertSheaShigedaSinghStanleySteeleStrykerSulernovaTamTenneyTersarkisovThomasWashburnWatkinsWatsonWhiteheadB. WilsonWilsonWinfieldWyattZellich
subsequent missions under Kirk & Spock AthendëBradleyCarpenterM. ClearyDettnerGrenniHadleyHeinemanIhirianJacobsKasatsukiKugelLayneLydiaNörenbergPrestonQuartonR'trikahiRandRossSchneiderScottTaskulThoboTwo FeathersWeinbergerWilliams UFP emblem image. USS Enterprise engineering assignment insignia.
see also: administrative personnelcommunications personnelmedical personnelpilots & flight control personnelsecurity & tactical personnelsciences personnelsenior staff • unnamed (2240s and 2250s2260s2270s and 2280s)
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