Pavel Chekov - Depiction

Depiction

Pavel Andreievich Chekov is a young and naïve ensign who first appeared on-screen in The Original Series’ second season as the Enterprise's navigator. However, The Wrath of Khan established that he had been assigned to the ship sometime before the first season episode "Space Seed", since Khan remembers him in the movie. Koenig joked that Khan remembered Chekov from the episode after he took too long in a restroom Khan wanted to use. In the book Adaptations: From Text to Screen, Screen to Text by Deborah Cartmell, Imelda Whelehan calls Khan's recognition of Chekov, despite Chekov not yet having appeared when Khan is introduced, "the apparent gaffe notorious throughout Star Trek fandom". It is also known that he joined after "Mudd's Women", since he does not recognize Mudd in the episode "I, Mudd".

Chekov also substitutes for Mr. Spock at the science officer station when necessary. His promotion to lieutenant for Star Trek: The Motion Picture brings with it his transfer as the ship's tactical officer and chief of security. By the events of Star Trek II: The Wrath of Khan, Chekov has been promoted to commander and executive officer aboard the USS Reliant. In that film, Khan Noonien Singh uses a creature that wraps itself around Chekov's cerebral cortex to control him and his captain. Chekov overcomes the creature's mind control and serves as Enterprise tactical officer in the film's climactic battle against Khan.

Chekov is an accomplice in Kirk's unsanctioned use of the Enterprise to rescue Spock (Star Trek III: The Search for Spock) but is exonerated for his actions (Star Trek: The Voyage Home). He serves as navigator and second officer aboard the Enterprise-A during the events of Star Trek V: The Final Frontier and Star Trek VI: The Undiscovered Country. The character's final film appearance is as a guest aboard the Enterprise-B on its maiden voyage (Star Trek Generations).

Star Trek novels show a continued career path, but these are not considered canon in the Star Trek universe. Novels written by William Shatner detail that Chekov reached the rank of Admiral, and even served as Commander in Chief of Starfleet.