Ensign Pavel Chekov served aboard the Terran starship ISS Enterprise, under Captain James T. Kirk. Chekov existed in the mirror universe, and was the counterpart of Pavel Chekov. After a failed attempt to kill Kirk, he was punished with a trip to the agony booth. (TOS: "Mirror, Mirror")
- Although no further references were made to the mirror Chekov, he plays a major role in the non-canon video game, Star Trek: Shattered Universe.
- Like his counterpart, Chekov was played by Walter Koenig.