John Leeson, Voice of Doctor Who’s K9 and Rainbow Star, Dies at 83

The Guardian World · 2026-11-02
John Leeson, Voice of Doctor Who’s K9 and Rainbow Star, Dies at 83

John Leeson, the actor beloved for voicing K9, the iconic robot dog in Doctor Who, has died at the age of 83. His son, Guy Ducker, announced the news on Facebook, saying Leeson passed away peacefully after a summer of illness. Leeson’s career spanned decades in British television, including roles in Dad’s Army and the children’s series Rainbow, but it was his work on Doctor Who that earned him lasting fame. He first voiced K9 in 1977 alongside Tom Baker’s Fourth Doctor and continued to return to the role over the years, becoming a cherished part of the show’s legacy. Russell T Davies, the current Doctor Who showrunner, remembered Leeson as a ‘true gent’ in a tribute, highlighting the warmth he brought to both his performances and his colleagues. Leeson’s contribution to one of science fiction’s most enduring franchises ensures his voice will be remembered by generations of fans. His passing marks the end of an era for classic Doctor Who, but K9’s loyal companionship remains a timeless part of the series’ history.