One actor from Star Trek: The Original Series played a Vulcan, a Romulan, and a Klingon throughout his Star Trek career. Mark Lenard is best known as Spock's (Leonard Nimoy) father, Vulcan ...

Spock (Leonard Nimoy), of course, was half-Vulcan and half-human, with a Vulcan father (played by Mark Lenard in the original ... that Saavik was actually half-Romulan. Indeed, a scene was shot ...