Star Trek: The Animated Series were added to the cast—claiming that Sulu and Uhura were of importance as they were proof of the ethnic diversity of the 23rd century and should not be recast. Nimoy also took this stand as a matter of principle, as he knew of the financial troubles many of his "Star Trek" co-stars were facing after cancellation of the series. Koenig was not forgotten, and later wrote an episode for the series, becoming the first "Star Trek" actor to write a "Star Trek" story. Koenig wrote "The Infinite Vulcan", which had plot elements from the original "Star Trek" episode "Space Seed"
Star Trek television series, the film franchise, and further adaptations in several media. In creating "Star Trek", Roddenberry was inspired by the Horatio Hornblower novels, the satirical book "Gulliver's Travels", and by works of western genre such as the television series "Wagon Train". These adventures continued in the 22-episode "" and six feature films. Four spin-off television series were eventually produced: "" followed the crew of a new starship "Enterprise" set a century after the original series; "" and "" set contemporaneously with "The Next Generation"; and "" set before the original series in the early days of human interstellar travel. The