Rollins

From Memory Alpha, the free Star Trek reference

Ensign Rollins was a Starfleet officer that served as tactical officer on board the USS Voyager under the command of Captain Kathryn Janeway in 2371. He manned the tactical post in place of Lieutenant Tuvok when the ship departed Deep Space 9.

After Voyager was swept into the Delta Quadrant, Rollins was left in charge of the bridge, and later served as temporary flight controller, until Tom Paris was given the position. (VOY: "Caretaker") Rollins was later promoted to lieutenant, and served as Paris' immediate superior, following the restructuring of Voyager's chain of command.

In mid-2372, Rollins was unhappy with Paris' poorly punctuated conn reports, noting that they were not according to Starfleet protocol. Their clash turned physically violent, apparently because Paris did not like his attitude. (VOY: "Dreadnought") This incident was part of a ploy by Janeway and Paris to draw out a mole transmitting information to the Kazon-Nistrim. (VOY: "Investigations")