The Star Trek franchise has been a time-warpingly huge force in the world of science fiction for over half a century. Kicking off their maiden voyage in 1966 and still going strong today, it would be a struggle to find anyone unfamiliar with at least one of the TV leviathan's many iterations. The actors themselves undoubtedly have a part to play in this notoriety; even the most unadventurous of TV-goers could pick out the likes of William Shatner, George Takei and Patrick Stewart in a crowd.
But what if these actors' legendary roles had gone to someone else? What if the producers had had a different vision for Mr. Spock than the stoic and tacitly snarky Vulcan that Leonard Nimoy brought to life? Would Starfleet be the same place at all with the showrunners' first choices at the helm?
These are the voyages of the captains who never sat in the chair. The would-be redshirts who never unceremoniously bit the space dust. The almost-villains whose stabbing hand fell just short of our backs. And so, here are 10 actors who did the unthinkable, and turned down Star Trek.