John Leeson, the actor best known for voicing the beloved robotic dog K9 in Doctor Who, has died aged 83.
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Leeson became a familiar voice to generations of Doctor Who fans, portraying K9 in the long-running science fiction series and its spin-offs, The Sarah Jane Adventures and K9.
He appeared in seasons 15, 16 and 18 of Doctor Who, alongside several anniversary specials and crossover episodes, beginning in 1977.
His final appearance as the character came in 2010.
Doctor Who Actor Dies Aged 83 Following Illness
Leeson's son, Guy Ducker, announced his father's death on Facebook following a period of ill health.
"I regret to announce the death of my father, John Ducker, a.k.a. John Leeson, at 3:03pm today after a summer of illness."
Ducker added that "the end was peaceful."
He later thanked Doctor Who fans for their support and affection throughout his father's career.
"Many thanks to the Whovian community for the love they showed to my father over the decades, it meant a lot to him and me," Ducker continued in another social media post.
Born in 1943, Leeson initially worked as a hospital porter at Leicester Royal Infirmary before pursuing a career in acting.
He successfully auditioned for the Royal Academy of Dramatic Art (RADA), where he studied between 1962 and 1964.
Born John Ducker, he later adopted the stage name John Leeson, taking inspiration from his godmother's surname.
John Leeson's Acting Career and Iconic Doctor Who Role
During his early career, Leeson traveled to the United States to perform plays by William Shakespeare.
He subsequently returned to the United Kingdom, taking on various theatrical roles in Frinton-on-Sea, Colchester, Birmingham, Newcastle and Nottingham.
His first television credit came in 1967 when he portrayed Henri de Burgoyne in six episodes of the British soap opera Crossroads.
Two years later, he appeared in the Dad's Army episode "Sons of the Sea."
Leeson went on to feature in several popular television productions, including Sorry!, Crown Court, Longitude, The Bill, Vanity Fair, Doctors and Blake's 7.
However, his most recognizable role came in 1977 when he joined Doctor Who as the voice of K9.
The robotic dog was originally intended to appear in just one storyline, but the character's popularity, particularly among younger viewers, led to an extended role in the series.
Leeson continued voicing K9 across multiple Doctor Who productions, establishing the character as one of the franchise's most recognizable companions.
His film credits also included Tarka the Otter in 1979 and Miami Connection in 1998.
His final television credit came in 2010, when he appeared on an episode of Celebrity Eggheads.
