John Leeson
Acting • Born 1943-01-01
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.
Filmography
68 credits
K9 Unleashed
Movie • 2000
Longleat '83: The Lost Footage
Movie • 2015
Doctor Who: Dimensions in Time
Movie • 1993
K9 (voice)
The Five(ish) Doctors Reboot
Movie • 2013
Self
Downtime
Movie • 1995
Anthony the D.J.
The Doctors: The Tom Baker Years
Movie • 2017
Tarka the Otter
Movie • 1979
Secretary of the Hunt
The Sarah Jane Adventures: Invasion of the Bane
Movie • 2007
K9
Doctor Who: The Ribos Operation
Movie • 1978
K-9 (voice)
Doctor Who: The Invisible Enemy
Movie • 1977
K-9 Mk. I (voice) / Nucleus (voice)
Doctor Who: The Invasion of Time
Movie • 1978
K9 (voice)
Doctor Who: Underworld
Movie • 1978
K-9 Mk. I (voice)
Doctor Who: The Sun Makers
Movie • 1977
K9 Mk. I (voice)
Doctor Who: The Stones of Blood
Movie • 1978
K-9 (voice)
Doctor Who: The Armageddon Factor
Movie • 1979
K-9 (voice)
Doctor Who: Meglos
Movie • 1980
K9 (voice)
Doctor Who: The Leisure Hive
Movie • 1980
K9 (voice)
Doctor Who: The Androids of Tara
Movie • 1978
K-9 (Voice)
Doctor Who: The Power of Kroll
Movie • 1979
Dugeen
Doctor Who: Warriors' Gate
Movie • 1981
K9 (voice)
Doctor Who: Full Circle
Movie • 1980
K9 (voice)
Doctor Who: State of Decay
Movie • 1980
K9 (voice)
Doctor Who: Remembrance of the Daleks
Movie • 1988
Voices
Doctor Who: The Pirate Planet
Movie • 1978
K-9 (voice)
K-9 and Company: A Girl's Best Friend
Movie • 1981
K-9 (voice)
Doctor Who: The Five Doctors
Movie • 1983
K9 (voice)
Celebration: Doctor Who in 1983
Movie • 2008
Myth Runner
Movie • 1987
Himself
Where on Earth Is Katy Manning?
Movie • 1998
Longleat '83: The Greatest Show in the Galaxy
Movie • 2001
Himself - Host
The Barretts of Wimpole Street
Movie • 1982
Henry Barrett
Doctor Who: Shada
Movie • 2003
K9 (voice)
Whoops Apocalypse
Movie • 1986
TV Interviewer
Search Out Space
Movie • 1990
K9 (voice)
A Matter of Time
Movie • 2007
A New Beginning
Movie • 2004
The K-9 Files
Movie • 2008
Parrot Fashion
Movie • 2007
Getting Blood from the Stones
Movie • 2007
Doctor Who: Gallifrey
Movie • 2025
The Doctor Who Escape Room: Team Third Doctor
Movie • 2025
K9 (voice)
Merry Christmas Doctor Who
Movie • 1978
K9 (voice)
The Sarah Jane Adventures: From Raxacoricofallapatorius with Love
Movie • 2009
K9 (voice)
Husband to Mrs. Fitzherbert
Movie • 1975
Clergyman
Doctor Who and the Shada Man
Movie • 2013
K9 (voice)
Doctor Who: Gallifrey
Movie • 2013
The Prince
Darkness & Light: The Life of Graham Williams
Movie • 2024
Self
The Sarah Jane Adventures
TV • 2007
K9 (voice)
K-9 and Company
TV • 1981
K-9 (voice)
Sorry!
TV • 1981
'Allo 'Allo!
TV • 1984
Train's Cook
K-9
TV • 2009
K-9 (voice)
Pointless Celebrities
TV • 2011
K-9 (voice)
Doctor Who
TV • 1963
K9 (voice)
Doctor Who
TV • 1963
Dugeen
Rainbow
TV • 1972
Bungle
Doctor Who
TV • 2005
K9 (voice)
Minder
TV • 1979
Passport Officer
Blake's 7
TV • 1978
Toise
Blake's 7
TV • 1978
Pasco
Bugs
TV • 1995
Harris
On the House
TV • 1970
Young Man
Longitude
TV • 2000
BBC Producer
Myth Makers
TV • 2015
Himself
Doctor Who: Behind the Sofa
TV • 2018
Self
Shadow of the Noose
TV • 1989
Dickinson
Vanity Fair
TV • 1998
Priest
Dad's Army
TV • 1968
Soldier