Vulcans are the classic Star Trek alien race. The show introduced many of the most iconic exterrestrial species in science fiction, but the Vulcans led the way. The early days of the franchise saw a passionate human match wits with a logical Vulcan. Their unique perspective allowed them to add something interesting to the show's philosophical characteristics. Spock is the most famous Vulcan, but he didn't invent his iconic traits. The most important Vulcan in the franchise is an ancient philosopher named Surak, and his story is a bit less clear.