John Leeson
Biography
John Leeson is a British actor who is known for voicing K-9 on the television series Doctor Who from 1977 to 1979, then from 1980 to 1981, and has returned for two single episode in the revived series. He also voiced K-9 in the show's spin-offs K-9 and Company, The Sarah Jane Adventures and K-9.
Gallery
Known For
Acting History
2025
Doctor Who: Gallifrey
2025The Doctor Who Escape Room: Team Third Doctor as K9 (voice)
2024Darkness & Light: The Life of Graham Williams as Self
2017The Doctors: The Tom Baker Years
2015Longleat '83: The Lost Footage
2015Myth Makers as Himself
2013Doctor Who and the Shada Man as K9 (voice)
2013The Five(ish) Doctors Reboot as Self
2013Doctor Who: Gallifrey as The Prince
2011Pointless Celebrities as K-9 (voice)
2009K-9 as K-9 (voice)
2009The Sarah Jane Adventures: From Raxacoricofallapatorius with Love as K9 (voice)
2008The K-9 Files
2008Celebration: Doctor Who in 1983
2007The Sarah Jane Adventures as K9 (voice)
2007Getting Blood from the Stones
2007A Matter of Time
2007Parrot Fashion
2007The Sarah Jane Adventures: Invasion of the Bane as K9
2005Doctor Who as K9 (voice)
2004A New Beginning
2003Doctor Who: Shada as K9 (voice)
2001Longleat '83: The Greatest Show in the Galaxy as Himself - Host
2000K9 Unleashed
2000Longitude as BBC Producer
1998Where on Earth Is Katy Manning?
1995Bugs as Harris
1995Downtime as Anthony the D.J.
1993Doctor Who: Dimensions in Time as K9 (voice)
1990Search Out Space as K9 (voice)
1988Doctor Who: Remembrance of the Daleks as Voices
1987Myth Runner as Himself
1986Whoops Apocalypse as TV Interviewer
1984'Allo 'Allo! as Train's Cook
1983Doctor Who: The Five Doctors as K9 (voice)
1982The Barretts of Wimpole Street as Henry Barrett
1981K-9 and Company: A Girl's Best Friend as K-9 (voice)
1981K-9 and Company
1981Sorry!
1981Doctor Who: Warriors' Gate as K9 (voice)
1980Doctor Who: State of Decay as K9 (voice)
1980Doctor Who: Full Circle as K9 (voice)
1980Doctor Who: Meglos as K9 (voice)
1980Doctor Who: The Leisure Hive as K9 (voice)
1979Tarka the Otter as Secretary of the Hunt
1979Minder as Passport Officer
1979Doctor Who: The Armageddon Factor as K-9 (voice)
1979Doctor Who: The Power of Kroll as Dugeen
1978Merry Christmas Doctor Who as K9 (voice)
1978Doctor Who: The Androids of Tara as K-9 (Voice)
1978Doctor Who: The Stones of Blood as K-9 (voice)
1978Doctor Who: The Pirate Planet as K-9 (voice)
1978Doctor Who: The Ribos Operation as K-9 (voice)
1978Doctor Who: The Invasion of Time as K9 (voice)
1978Doctor Who: Underworld as K-9 Mk. I (voice)
1978Blake's 7 as Toise
1978Blake's 7 as Pasco
1977Doctor Who: The Sun Makers as K9 Mk. I (voice)
1977Doctor Who: The Invisible Enemy as K-9 Mk. I (voice) / Nucleus (voice)
1975Husband to Mrs. Fitzherbert as Clergyman
1972Rainbow as Bungle
1970On the House as Young Man
1963Doctor Who as K9 (voice)
1963Doctor Who as Dugeen