Pavel Andreievich Chekov (Russian: Павел Андреевич Чеков) is a fictional character in the Star Trek universe. Walter Koenig portrayed Chekov in the second and third seasons of the original Star Trek series and the first seven Star Trek films. Anton Yelchin portrayed the character in the 2009 Star Trek reboot film and two sequels, Star Trek Into Darkness and Star Trek Beyond. Both Koenig and Yelchin were born to Russian parents, but grew up in the United States, and both affected Russian accents for their roles. Source: Wikipedia (en)