Ensign Tabor, a Bajoran and former Maquis resistance fighter serving under Chakotay, served aboard the USS Voyager, under Captain Kathryn Janeway, from 2371 to 2377.
As a child, during the Occupation of Bajor, Tabor and his family was placed at one of Crell Moset's "so-called" hospitals on Bajor. It was at this hospital that Moset conducted many unethical tests on Tabor's family resulting in the murder of his brother and his grandfather. The experiments conducted on Tabor's grandfather by Moset, who considered the lives of the elderly worthless, was the exposure of his internal organs to nadion radiation. Following the experiment, it took Tabor's grandfather six days to die. Long after the ordeal, Tabor could still remember the sounds Moset's instruments made, the screams of his patients and the smell of chemicals and dead flesh. (VOY: "Nothing Human")
While in the Maquis, B'Elanna Torres and other members, would joke that Tabor must have had his own personal forcefield, as he would go through so many fire fights without even getting his clothes dirty. (VOY: "Repression")
In 2375, when Voyager's EMH required an exobiology consultant which established a re-creation of Crell Moset, Tabor was violently opposed to the choice. Tabor chose to be relieved of duty and resign his commission based on moral objections to this ship's medical policy, because he felt the use of Moset was a violation of the memory of his family. His request was denied by commander Chakotay. (VOY: "Nothing Human")
Tabor was friends with Tom Paris in 2377, Tabor assisted Tom in creating a holodeck simulation of the 1932 Palace Theater in Chicago. While working alone in the holodeck on this program he was attacked by Tuvok who was under the influence of Teero Anaydis. Tabor spent the next 29 hours in a coma, he recovered on his own, but was "programmed" with instructions to help launch a new Maquis rebellion and take control of Voyager upon hearing a Bajoran chant . He took over Ops on the Bridge during the ensuing rebellion. The mutiny was averted by Tuvok who able to counter Teero's influence. Tuvok then mind-melded with Tabor and the other affected crewmembers to bring them back to normal. (VOY: "Repression")
Additional Information
Ensign Tabor was played by Jad Mager, and was seen in the episodes VOY: "Nothing Human" and VOY: "Repression".