John Leeson
- Known for
- Acting
- Born
- March 16, 1943
- Died
- November 1, 2026
- Birthplace
- Leicester, Leicestershire, England, UK
John Leeson (16 March 1943 — 1 November 2026) was a British actor, known for voicing K-9 on the television series Doctor Who from 1977–79, then from 1980–81, and returned for two single episodes in the revival series. He also voiced K-9 in the show's spin-offs K-9 and Company, The Sarah Jane Adventures, and K-9.
Filmography
The Doctor Who Escape Room: Team Third Doctor 2025
as K9 (voice)
Darkness & Light: The Life of Graham Williams 2024
as Self
The Doctors: The Tom Baker Years 2017
Actor
Longleat '83: The Lost Footage 2015
Actor
The Five(ish) Doctors Reboot 2013
as Self
The K-9 Files 2008
Actor
Celebration: Doctor Who in 1983 2008
Actor
Getting Blood from the Stones 2007
Actor
Parrot Fashion 2007
Actor
A Matter of Time 2007
Actor
The Sarah Jane Adventures: Invasion of the Bane 2007
as K9
A New Beginning 2004
Actor
Doctor Who: Shada 2003
as K9 (voice)
Longleat '83: The Greatest Show in the Galaxy 2001
as Himself - Host
K9 Unleashed 2000
Actor
Where on Earth Is Katy Manning? 1998
Actor
Downtime 1995
as Anthony the D.J.
Doctor Who: Dimensions in Time 1993
as K9 (voice)
Search Out Space 1990
as K9 (voice)
Doctor Who: Remembrance of the Daleks 1988
as Dalek Battle Computer (voice)
Myth Runner 1987
as Himself
Whoops Apocalypse 1986
as TV Interviewer
Doctor Who: The Five Doctors 1983
as K9 (voice)
The Barretts of Wimpole Street 1982
as Henry Barrett
K-9 and Company: A Girl's Best Friend 1981
as K-9 (voice)
Doctor Who: Warriors' Gate 1981
as K9 (voice)
Doctor Who: State of Decay 1980
as K9 (voice)
Doctor Who: Full Circle 1980
as K9 (voice)
Doctor Who: Meglos 1980
as K9 (voice)
Doctor Who: The Leisure Hive 1980
as K9 (voice)
Tarka the Otter 1979
as Secretary of the Hunt
Doctor Who: The Armageddon Factor 1979
as K-9 (voice)
Doctor Who: The Power of Kroll 1979
as Dugeen
Merry Christmas Doctor Who 1978
as K9 (voice)
Doctor Who: The Androids of Tara 1978
as K-9 (Voice)
Doctor Who: The Stones of Blood 1978
as K-9 (voice)
Doctor Who: The Pirate Planet 1978
as K-9 (voice)
Doctor Who: The Ribos Operation 1978
as K-9 (voice)
Doctor Who: The Invasion of Time 1978
as K9 (voice)
Doctor Who: Underworld 1978
as K-9 Mk. I (voice)
Doctor Who: The Sun Makers 1977
as K9 Mk. I (voice)
Doctor Who: The Invisible Enemy 1977
as K-9 Mk. I (voice) / Nucleus (voice)
- Husband to Mrs. Fitzherbert
Husband to Mrs. Fitzherbert 1975
as Clergyman
Credits from TMDB.