Jennifer Lien’s Kes was a key member of the Star Trek: Voyager crew but was written out in season 4. Here’s why Lien (and Kes) left the series. The character of Kes Star Trek: Voyager, portrayed by actress Jennifer Lien left the series after season 3, even though she was a central and interesting character. Premiering in 1995, Star Trek: Voyager hoped to usher in a new generation of fans after Jean-Luc Picard’s time on the small screen came to an end. In a unique twist, Captain Janeway’s Starfleet vessel finds itself lost in the Delta Quadrant, and the Voyager crew aren’t seeking new worlds and new civilizations, but a way home. Among Star Trek: Voyager‘s main cast was Jennifer Lien as Kes. A member of the Ocampa species, Kes possessed telepathic abilities and was romantically involved with Neelix initially, before breaking off the entanglement in season 3. In a further alien quirk, Kes was tragically destined for a lifespan of only nine years.