Worf was first introduced in Star Trek: The Next Generation as a Klingon orphan who grew up on Earth and eventually joined Starfleet. He became the head of security on the Enterprise-D with Dorn starring in TNG for all seven seasons. He would later reprise his role become a leading character in Star Trek: Deep Space Nine from the fourth season on as Worf was transferred to the Federation outpost, playing a significant part in Starfleet’s brief war with the Klingons as well as the Dominion War. Dorn was also seen as Worf in all four of the TNG feature films with his last appearance in