James T. Kirk is the captain of the Starship Enterprise and is from a parallel universe. Under orders from Starfleet Command, Kirk follows a Klingon ship into a portal, which brings him and his crew to the Planet of the Apes.
- Kirk is a Boom! Studios exclusive character. However he and the Star Trek license fall under IDW Publishing.
- Kirk, along with his ship's crew are exclusive to the Star Trek/Planet of the Apes crossover.
- Star Trek/Planet of the Apes: The Primate Directive (comic book)