being cast as two recurring characters, the Ferengi Brunt and the Vorta Weyoun. He would go on to appear in 31 episodes of DS9. In "The Dogs of War", he became one of the few Star Trek actors to play two unrelated roles (Brunt and Weyoun) in the same episode. He would later play the recurring role of Shran on Star Trek: Enterprise. In addition to Quark and his brother Rom (Max Grodénchik), several other Ferengi had recurring roles, including their shrewd mother Ishka (Andrea Martin, later Cecily Adams), who eventually engineers a social revolution on Ferenginar; Rom's son Nog (Aron Eisenberg), the first Ferengi to join Starfleet; and Grand Nagus Zek (Wallace Shawn), the Ferengi leader. The Bajoran character Leeta (Chase Masterson), who works at Quark's bar and later marries Rom, is sometimes involved in the Ferengi storyline. The Klingon Empire plays a significant role in DS9. Aside from Worf, recurring Klingon characters include Chancellor Gowron (Robert O'Reilly), leader of the Empire, who was introduced on The Next Generation, and General Martok (J. G. Hertzler), a leader of the Klingon forces in the Dominion War, who succeeds Gowron as Chancellor when Gowron is killed by Worf late in the series. Kor, a Klingon character from Star Trek: The Original Series, appears in three DS9 episodes; one of them, "Blood Oath", unites Kor with two other Klingons from the original series: Koloth and Kang. John Colicos, William Campbell and Michael Ansara reprised their original series roles. Morn is a minor character who is a fixture in Quark's establishment, sitting at the bar over the course of seven years. It became a running joke that, though the other characters remark on how talkative and funny he is, he never speaks a word on camera. Morn did have a line in the script for pilot episode "Emissary", but it was cut due to run time considerations, after which the creators conceived the joke that he never talks. Season overview Star Trek: Deep Space Nine ran for seven seasons, from 1993 to 1999. The first season started half-way through the typical broadcast season running from fall to spring and had fewer episodes than typical Star Trek runs. Plot elements Major plotlines focus on several key Star Trek cultures, especially interactions between the Bajorans, Cardassians, Ferengi, Klingons, and the Federation. Each of these cultures is represented by major characters in the main or recurring