Walter Koenig, Star Trek’s Ensign Chekov, Dies at 90

American actor Walter Koenig, best known for playing Ensign Pavel Chekov in the original Star Trek television series and its subsequent films, has died at the age of 90.

Koenig died on Monday, October 26, 2026, at his home in the North Hollywood neighbourhood of Los Angeles, according to his talent agent, Zachery McGinnis. He was surrounded by his daughter, Danielle Koenig, and his niece.

His death prompted tributes from colleagues and fans who remembered him for his contribution to one of television’s most enduring science-fiction franchises.

Actor George Takei, who played Hikaru Sulu alongside Koenig in Star Trek, expressed sadness over the loss, describing his longtime friend as more than the character he portrayed on screen.

“My heart is heavy,” Takei wrote in a tribute. “Walter was more than Chekov. He was a writer, a teacher, a thoughtful man, and a loyal friend.”

Born on September 14, 1936, in Chicago, Illinois, Koenig studied at the University of California, Los Angeles, before pursuing acting training at New York’s Neighborhood Playhouse. He began securing television roles in the early 1960s, appearing in programmes including Mr. Novak and Ben Casey.

His career-defining opportunity came in 1967, when he joined Star Trek during its second season as Pavel Chekov, the young Russian navigator aboard the fictional starship USS Enterprise.

Koenig appeared in 36 episodes of the original series, which ran on NBC from 1966 to 1969. His character became notable for representing a Soviet Russian officer working alongside an ethnically diverse crew during the Cold War, when the United States and the Soviet Union were geopolitical rivals.

The character’s place aboard the Enterprise reflected the series’ vision of a future in which people from different backgrounds and nations could work together despite their differences.

Following the television series, Koenig reprised Chekov in seven Star Trek feature films released between 1979 and 1991, helping extend the character’s popularity across generations of viewers

His acting career also extended beyond the franchise. He played Alfred Bester, a powerful telepath, in the science-fiction television series Babylon 5. Koenig additionally worked as a television writer, contributing scripts to productions including Family, The Incredible Hulk and Land of the Lost.

Beyond acting and writing, he taught part-time at UCLA and other institutions and maintained a close relationship with Star Trek fans through conventions and public appearances. His representative said Koenig appreciated the community that grew around the series and continued to engage warmly with its supporters.

Koenig’s work earned him a place on the Hollywood Walk of Fame in 2012. He also continued taking on creative projects later in life, including independent film work.

His personal life was marked by the loss of his wife, actress Judy Levitt, who died in 2022, and his son, actor Andrew Koenig, who died in 2010. He is survived by his daughter, Danielle.

Koenig’s death marks the loss of another member of the original Star Trek cast, whose performances helped establish a franchise that has continued through films, television spin-offs, books and generations of devoted fans.