Karen Tracy

Karen Tracy was a 23rd century Human woman. She served in Starfleet in the sciences division aboard the Federation starship USS Enterprise (NCC-1701) under the command of Captain James T. Kirk in the 2260s.

History
Tracy was trained in the use of a psychotricorder to perform psychiatric examinations.

In 2266, Tracy filled in for Spock on the bridge while Nyota Uhura was in command during a confrontation with a Shechenag ship. Tracy maintained a long-range sensor fix on Tlaoli IV's Janus Gate, routing sensor data to the engineering and helm stations so that Uhura could enact a rescue plan for Kirk and Spock. 

In 2267, Tracy beamed down to the home of Prefect on Argelius II. Kirk asked her to conduct a recursive memory scan of Montgomery Scott with her psychotricorder. While she was analyzing Scott, she was murdered by Redjac. 

Background

 * Tracy's height and eye color are those of Virginia Aldridge, the actor who portrayed her. (Virginia Aldridge article at the Celebrity How website)
 * Her last name was spelled Tracey in "Past Prologue".