He never completed his intial five-year mission (because the 1960s show got cancelled) but William Shatner just can't shake Star Trek. After many movies and several spin-off series - the latest one of which has been cancelled - now there's a computer game called Star Trek: Legacy and Shatner is again providing the voice of Captain James T. Kirk. He explained: "I couldn't imagine someone else playing Captain Kirk, even in a video game, so I kind of got a little territorial." Shouldn't that be extra-territorial?