Worf, son of Mogh, of the Klingon House of Martok, of the Human House of Rozhenko, bane of the House of Duras, slayer of Gowron has had one of the most riveting character arcs of any character from Star Trek. Audiences first met him as part of the Enterprise crew in The Next Generation, where he served as a chief security officer. The franchise wasn't done with him after that series ended, though. The first Klingon Starfleet officer found himself in multiple movies, and eventually on The Next Generation's follow-up series, Deep Space Nine.