Koenig later played Alfred Bester, a Psi Corps telepath, in Babylon 5
The BBC said US actor Walter Koenig was “arguably more integral to the movies.” The report noted that the Academy of Science Fiction, Fantasy & Horror nominated him for his work on The Wrath of Khan (1982) and The Voyage Home (1986). Both were Star Trek films in which Koenig reprised the Pavel Chekov role.
Representatives for Koenig said in a statement given to the BBC: “Today we mourn the passing of Walter Koenig, whose talent, warmth, and unforgettable performances left a lasting mark on generations of fans around the world.” They confirmed he had died “of old age at home in North Hollywood” on Sunday night, “surrounded by his daughter and niece.” The actor was 90.
George Takei, who played Hikaru Sulu, led the tributes on social media on Monday. Takei wrote: “Walter was more than Chekov. He was a writer, a teacher, a thoughtful man, and a loyal friend.” He added: “Rest well, my dear friend. Keep navigating a steady course.”
The BBC described Koenig as a mainstay of Star Trek from season two in 1967 until the series ended in 1969. He played the spirited Russian crewman Pavel Chekov, the eager and earnest navigator of the Starship Enterprise. The BBC said Chekov added heart and humour to the adventures of the crew, led by William Shatner as Captain James T. Kirk.
One image caption, credited to CBS via Getty Images, showed Koenig as Pavel Chekov aboard the USS Enterprise during an episode of Star Trek from 1968. A second caption, also from Getty Images, showed William Shatner as Captain James T. Kirk speaking into his communicator, with James Doohan as Montgomery “Scotty” Scott and Walter Koenig as Pavel Chekov (right) in an episode from 1968.
Koenig’s big break came as the capable young Chekov, who would often joke that everything was invented in Russia. The BBC said the character was introduced to appeal to younger audiences, with a Beatles- and Monkees-style mop-top haircut. It also said Star Trek creator Gene Roddenberry’s studio publicized the role in response to criticism in Pravda, described as the main newspaper of the Soviet Communist Party, about the lack of a Russian character. Koenig later denied that claim.
The American series aired during the Cold War and Space Race between the United States and Soviet Union. The BBC said it imagined a future in which nations worked together to explore the galaxy and that Chekov’s Russian heritage fit that ideal. According to The Hollywood Reporter, Koenig once said the character’s purpose on the NBC show was to “set out the bones of the plot and let McCoy, Spock and Kirk fill it in.”
Koenig reprised Chekov in the six original-cast movies from 1979 through 1991. His seventh Star Trek film appearance was a brief one in Generations (1994), mainly a Next Generation film. He later voiced President Anton Chekov in the modern series Star Trek: Picard in 2023.
In the mid-to-late 1990s, Koenig portrayed a very different character, the ruthless Psi Corps telepath Alfred Bester, in Babylon 5. He also wrote an episode of the original show’s animated series spin-off in 1973, titled The Infinite Vulcan. A published author, Koenig’s other on-screen credits included Columbo and Futurama.
A Getty Images caption showed Koenig speaking during the Original Series panel at the 18th annual Official Star Trek Convention in Las Vegas in 2019. Earlier this year, his performance in the short film Mr Fleischmann saw him collect the Platinum Award for best actor at the 2026 Independent Shorts Awards, in recognition of his craft and career.
Born in Chicago and raised in Manhattan, Koenig was the son of Soviet Jewish immigrants whose family had lived in Lithuania. He studied at the Neighborhood Playhouse School of the Theatre in New York alongside James Caan, Christopher Lloyd and Dabney Coleman.
Koenig married Judy Levitt in 1965. She appeared with him in three Star Trek movies and in Michael Straczynski’s futuristic space opera Babylon 5, and they remained together until her death in 2022. Their son Andrew, who played Richard “Boner” Stabone on the ABC sitcom Growing Pains, died by suicide in 2010 at age 41. Koenig was survived by their daughter, actress and screenwriter Danielle Koenig, who worked on the animated series Star vs. the Forces of Evil.