Sarah
Lieutenant Sarah was a Trill female who served as a Federation Starfleet officer during the mid-23rd century.

Sarah served in the sciences division aboard the  when Captain Lynne Lucero took command around stardate 1421.9. She participated in a department head briefing with the Captain, where Lt. Edward Larkin had trouble accessing his PADD. After initially brushing off Sarah's effort to assist, she was able to easily help him access his data on his work with tribbles.

Later, when the captain was touring the science lab that Sarah shared with Larkin, Lucero joked with Sarah, before noting "I look forward to more fascinating work from you."

Sarah later rushed in to assist with a lab breach caused by Larkin's work with the tribbles. Before long, the tribbles had started to take over the ship, and Sarah found them getting into the ship's circuitry. Sarah analyzed a newborn tribble, finding "they're born pregnant." As the situation escalated, she reported to Captain Lucero that the tribbles were multiplying at an exponential rate, threatening the ship's oxygen supply. 

Within two weeks, the Cabot was suffering a complete structural failure forcing Sarah and the rest of the crew, except Larkin, to abandon ship. ()

Trill
USS Cabot personnel
Starfleet sciences personnel