Gene Roddenberry’s wife, Majel Roddenberry, appeared on Star Trek as nurse Chapel, working under the supervision of Dr. McCoy. Later, she also appeared on Star Trek: The Next Generation as Deanna Troy’s mother, Lwoxana, and voiced the words spoken by the USS Enterprise’s ship computer.
The "Live Long and Prosper" Gesture Has Jewish Origins
Leonard Nimoy, who grew up as an Orthodox Jew, chose to use a hand gesture he witnessed in childhood during a church service as the salute for the famous Vulcan greeting "Live Long and Prosper".
An Actor Created the Klingon Language
One of the more famous aspects of Star Trek is the language spoken by the alien race Klingons, which fans around the world have taught themselves by observing the shows. The language was originally designed by one of the show's actors, James Doohan, who played the ship engineer Scotty.