Walter Koenig, who played Ensign Pavel Chekov on the original “Star Trek” series, died Sunday at his home in North Hollywood, California. He was 90.
His agency confirmed the death in a Facebook post Monday, saying Koenig died of old age and was with his daughter, Danielle, and his niece when he passed.
“Walter’s legacy extends far beyond the screen,” the agency’s statement read. “Through countless convention appearances and interactions with fans, he shared his kindness, wit, and appreciation with everyone fortunate enough to meet him.”
“He understood what ‘Star Trek’ meant to people and embraced the community that grew around it,” the statement continued. “Thank you, Walter, for the memories, the inspiration, and for boldly going where few have gone before.”
George Takei, who played Sulu alongside Koenig, mourned his longtime friend in a Facebook post of his own, writing that the two first met in 1960 and remained close ever since.
“Walter was more than Chekov. He was a writer, a teacher, a thoughtful man, and a loyal friend. To the fans who loved him for so many years, thank you. He loved you too.”
Koenig was born September 14, 1936, in Chicago and raised in New York City by Russian Jewish immigrant parents. He started out as a pre-med student at Grinnell College in Iowa before transferring to UCLA, where he earned a bachelor’s degree in psychology. A professor there pushed him toward acting, setting him on a path to New York’s Neighborhood Playhouse.
He landed early TV roles on “Combat!” in 1962, “The Untouchables” in 1963, and two episodes of “General Hospital” that same year before joining “Star Trek” as Chekov in 1967.
In a 2013 interview with the TV Academy Foundation, Koenig admitted he had never watched “Star Trek” before joining the cast in its second season. He recalled the odd way he found out he’d gotten the part, when a wardrobe assistant showed up to measure him for a costume.
“He drops on his knees in front of me. [He] takes my crotch in his hand, and I’m saying, ‘What are you doing?!’ I didn’t see the tape-measuring ruler in his other hand, and he was measuring from my crotch to my cuff to decide how long my pants should be. He says, ‘You do have to have a costume, don’t you?’ And that’s the auspicious way I learned I was on ‘Star Trek’ and it was going to change my life.”
Koenig played Chekov through the original series’ third season in 1968, acting alongside William Shatner’s Captain Kirk and Leonard Nimoy’s Mr. Spock. He returned to the role in “Star Trek: The Motion Picture” (1979), “Star Trek II: The Wrath of Khan” (1982) and “Star Trek III: The Search for Spock” (1984), and went on to appear in further franchise films between 1986 and 1994.
His final screen credit was the 2025 film “Raging Midlife.” He also appeared as himself in the 2025 short “Lost Voyages: Phase II and the Rebirth of Star Trek.”
Koenig married Judy Levitt, who also appeared in the “Star Trek” films, in 1965. The couple had two children, Danielle and the late Andrew, who died by suicide in 2010. Levitt died in 2022 at age 83.