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.

Known For

Doctor Who

K9 (voice)

Doctor Who

K9 (voice)

Doctor Who

Dugeen

Minder

Passport Officer

Rainbow

Bungle

'Allo 'Allo!

Train's Cook

The Five(ish) Doctors Reboot

Self

Pointless Celebrities

K-9 (voice)

Filmography

Year	Movie	Role
2025	Doctor Who: Gallifrey
2025	The Doctor Who Escape Room: Team Third Doctor	K9 (voice)
2024	Darkness & Light: The Life of Graham Williams	Self
2017	The Doctors: The Tom Baker Years
2015	Longleat '83: The Lost Footage
2013	The Five(ish) Doctors Reboot	Self
2013	Doctor Who and the Shada Man	K9 (voice)
2013	Doctor Who: Gallifrey	The Prince
2009	The Sarah Jane Adventures: From Raxacoricofallapatorius with Love	K9 (voice)
2008	Celebration: Doctor Who in 1983
2008	The K-9 Files
2007	The Sarah Jane Adventures: Invasion of the Bane	K9
2007	A Matter of Time
2007	Parrot Fashion
2007	Getting Blood from the Stones
2004	A New Beginning
2003	Doctor Who: Shada	K9 (voice)
2001	Longleat '83: The Greatest Show in the Galaxy	Himself - Host
2000	K9 Unleashed
1998	Where on Earth Is Katy Manning?
1995	Downtime	Anthony the D.J.
1993	Doctor Who: Dimensions in Time	K9 (voice)
1990	Search Out Space	K9 (voice)
1988	Doctor Who: Remembrance of the Daleks	Voices
1987	Myth Runner	Himself
1986	Whoops Apocalypse	TV Interviewer
1983	Doctor Who: The Five Doctors	K9 (voice)
1982	The Barretts of Wimpole Street	Henry Barrett
1981	Doctor Who: Warriors' Gate	K9 (voice)
1981	K-9 and Company: A Girl's Best Friend	K-9 (voice)
1980	Doctor Who: Meglos	K9 (voice)
1980	Doctor Who: The Leisure Hive	K9 (voice)
1980	Doctor Who: Full Circle	K9 (voice)
1980	Doctor Who: State of Decay	K9 (voice)
1979	Tarka the Otter	Secretary of the Hunt
1979	Doctor Who: The Armageddon Factor	K-9 (voice)
1979	Doctor Who: The Power of Kroll	Dugeen
1978	Doctor Who: The Ribos Operation	K-9 (voice)
1978	Doctor Who: The Invasion of Time	K9 (voice)
1978	Doctor Who: Underworld	K-9 Mk. I (voice)
1978	Doctor Who: The Stones of Blood	K-9 (voice)
1978	Doctor Who: The Androids of Tara	K-9 (Voice)
1978	Doctor Who: The Pirate Planet	K-9 (voice)
1978	Merry Christmas Doctor Who	K9 (voice)
1977	Doctor Who: The Invisible Enemy	K-9 Mk. I (voice) / Nucleus (voice)
1977	Doctor Who: The Sun Makers	K9 Mk. I (voice)
1975	Husband to Mrs. Fitzherbert	Clergyman

Year	TV Show	Role
2015	Myth Makers	Himself
2011	Pointless Celebrities	K-9 (voice)
2009	K-9	K-9 (voice)
2007	The Sarah Jane Adventures	K9 (voice)
2005	Doctor Who	K9 (voice)
2000	Longitude	BBC Producer
1995	Bugs	Harris
1984	'Allo 'Allo!	Train's Cook
1981	K-9 and Company
1981	Sorry!
1979	Minder	Passport Officer
1978	Blake's 7	Pasco
1978	Blake's 7	Toise
1972	Rainbow	Bungle
1970	On the House	Young Man
1963	Doctor Who	K9 (voice)
1963	Doctor Who	Dugeen