Lieutenant Jenna McFarland was a Trill/human hybrid who served in Starfleet during the 24th century. She was assigned as a conn officer aboard the USS Excelsior in 2377. Even though McFarland was the head of her department, she frequently took the unpopular duty shifts, and was rarely on alpha watch. While on vacation in 2383, she assisted Admiral Ian Knapp in the search for his missing daughter. (Star Trek: Hidden Frontier: "Past Sins")