Tasha Yar
Fictional character
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, Yar is chief of security aboard the Starfleet... Wikipedia
Sister: Ishara Yar
Daughter: Sela
Notable aliases: Lieutenant Tasha Yar, Lt. Tasha Yar, Natasha "Tasha" Yar, and more
Rank: Chief Tactical Officer and Chief of Security
First appearance: "Encounter at Farpoint" (1987)
Last appearance: "All Good Things..." (1994)