Ogar was a 23rd century male of unstated origin. By the late 2270s, Ogar was serving as a commander in Starfleet, assigned to Fleet Admiral Karis Tatenen's staff, stationed on the planet Khepri.

In 2277, Ogar accompanied Tatenen and the rest of his staff to a top-secret diplomatic mission on Pollox IV, traveling aboard the USS Enterprise. (TOS - Star Trek II Short Stories short story: "The Blaze of Glory")