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Actor Who Played Doctor Who's Most Beloved Companion Dies 'Peacefully' Aged 83
His family said he died peacefully after a summer of illness, and his K-9 voice defined Doctor Who for decades.
- On Sunday, actor John Leeson, the voice of robotic dog K-9 in Doctor Who, died at age 83. His son, Guy Ducker, announced the passing following a "summer of illness."
- Leeson debuted as the voice of K-9 in the 1977 serial The Invisible Enemy, creating a mechanical tone for the character. His catchphrase "Affirmative, Master" became iconic for generations of viewers.
- Doctor Who showrunner Russell T Davies called Leeson a "fine, fine actor," noting it was "impossible to imagine anyone else" in the role. Leeson also appeared in Dad's Army, Rainbow, and The Bill.
- Earlier in 2026, Leeson reunited with former Doctor Who co-star Tom Baker for the audio drama Sir Sherlock: The Red Letter Day. He played Doctor John Watson opposite Baker's Sherlock Holmes.
- Guy Ducker concluded his announcement with a quote from Shakespeare's Hamlet: "Good night, sweet prince, And flights of angels sing thee to thy rest." Leeson's work cemented his status as a fixture of British science fiction.
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John Leeson was 83 years old.
·Budapest, Hungary
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The IndependentReposted by 
The Independent (US)
The Independent (US)Doctor Who's K9 voice actor John Leeson dies aged 83
Leeson first voiced Doctor Who’s robotic sidekick in 1977 and returned in 2006 for the modern revival
·London, United Kingdom
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Total News Sources20
Leaning Left4Leaning Right2Center7Last UpdatedBias Distribution54% Center
Bias Distribution
- 54% of the sources are Center
54% Center
L 31%
C 54%
15%
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