10 Star Trek Cameos You (Probably) Missed

10. Leonard Nimoy - Star Trek III: The Search For Spock

In a film called 'Star Trek III: The Search For Spock,' one would easily be forgiven for thinking that Leonard Nimoy's role equated to slightly more than a cameo. While it's true that the Vulcan is resurrected on the dying Planet Genesis, before being refused with his Katra on his homeworld, it is for a performance that has nothing to do with Spock himself that lands Nimoy on this list.

As director of the film, Nimoy had a say in the design of the new Starfleet vessel, the USS Excelsior. Although Nilo Rotis was the mastermind behind the final shape, Nimoy was able to infuse a little bit of himself to gain immortality through the main computer of the Great Experiment.

As Captain Scott is clocking off from his little bit of sabotage, he bumps into Captain Styles before getting away from the man as quickly as possible. He steps into a turbolift and the computer asks him 'Level, please?' before offering a pleasant little 'Thank you!'

Scotty replies with a dry 'up your shaft' to the voice. That voice is none other than Leonard Nimoy himself, making an uncredited cameo as the voice of the Enterprise's rival starship.