Dr. Benjamin Spock, American pediatrician — Spock

Spock is a fictional character in the Star Trek media franchise. Portrayed by Leonard Nimoy, he is one of the three central characters in the original Star Trek series (1966–69), alongside Captain James T. Kirk and Dr. Leonard "Bones" McCoy. On that series, Spock served as first officer and science officer of the starship Enterprise. Spock's mixed human–Vulcan heritage serves as an important plot