– James T. Kirk, 2263 (Star Trek Beyond) James Tiberius Kirk was a 23rd century Human Federation Starfleet officer. As a Starfleet cadet, he was instrumental in the defeat and death of Nero, a Romulan bent on the obliteration of the entire United Federation of Planets. As a result, he was commissioned directly to the rank of captain and appointed as commanding officer of the service's flagship, the USS Enterprise.