Star Trek‘s Ambassador Sarek (Mark Lenard) was not always a great father to his son, Spock (Leonard Nimoy), but he became one of the most influential Vulcans of all time. Despite Sarek’s rigid adherence to Vulcan logic, he fell in love with and married a human woman named Amanda Grayson (Jane Wyatt). With a Vulcan father and a human mother, Spock felt caught between two worlds on Star Trek: The Original Series. Ambassador Sarek wanted his son to embrace his Vulcan side and reject human emotion, but this did not come naturally to Spock.

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