An Enterprise yeoman in Kirk's landing party on Eminiar VII in 2267, who is given a weapon and set to guard Mea 3 during the escape.
Yeoman Tamura appears in the first-season episode A Taste of Armageddon. She beams down with Kirk, Spock and two security men to open relations with Eminiar VII, and is taken prisoner with them when the Enterprise is declared a casualty of the planet's computer-fought war.
After Spock gets the party out of confinement, they capture Mea 3, who is determined to report to a disintegration chamber as the rules require. Kirk hands Tamura a disruptor and tells her to keep Mea from doing so by any means necessary.
She carries out the order while Kirk and Spock go on to destroy the war computers, and returns safely to the ship. Tamura was played by Miko Mayama.