Real world article
(written from a production point of view)
John Gibson is an actor and stuntman who portrayed one of Khan's henchmen in Star Trek II: The Wrath of Khan. As a background actor, he received no credit for his performance.
Gibson's other credits include a supporting role in the drama Date with a Kidnapper (1976, with Larry Drake) and stunts in the mystery film Somebody Killed Her Husband (1978, with John Glover).