
John Leeson
Born
January 1, 1943 (82 years old)
Known For
Acting
Place of Birth
Leicester, Leicestershire, England, UK
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.
Doctor Who: Gallifrey
2025

The Doctor Who Escape Room: Team Third Doctor
K9 (voice)
2025

The Doctors: The Tom Baker Years
2017

Longleat '83: The Lost Footage
2015

The Five(ish) Doctors Reboot
Self
2013

Pointless Celebrities
K-9 (voice) · (1 episode)
2011

Sarah Jane's Alien Files
K9 · (6 episodes)
2010

K-9
K-9 (voice) · (26 episodes)
2009

The K-9 Files
2008

Celebration: Doctor Who in 1983
2008

A Matter of Time
2007

Parrot Fashion
2007

Getting Blood from the Stones
2007

The Sarah Jane Adventures
K9 (voice) · (10 episodes)
2007

The Sarah Jane Adventures: Invasion of the Bane
K9
2007

Doctor Who
K9 (voice) · (2 episodes)
2005

A New Beginning
2004

Doctor Who: Shada
K9 (voice)
2003

Longleat '83: The Greatest Show in the Galaxy
Himself - Host
2001

K9 Unleashed
2000

Where on Earth Is Katy Manning?
1998

Bugs
Harris · (1 episode)
1995

Downtime
Anthony the D.J.
1995

Doctor Who: Dimensions in Time
K9 (voice)
1993

Search Out Space
K9 (voice)
1990

Doctor Who: Remembrance of the Daleks
Voices
1988

Myth Runner
Himself
1987

Whoops Apocalypse
TV Interviewer
1986

Myth Makers 2: John Leeson
1984

'Allo 'Allo!
Train's Cook · (1 episode)
1984

Doctor Who: The Five Doctors
K9 (voice)
1983

The Barretts of Wimpole Street
Henry Barrett
1982

K-9 and Company: A Girl's Best Friend
K-9 (voice)
1981

K-9 and Company
(1 episode)
1981

Sorry!
(42 episodes)
1981

Doctor Who: Warriors' Gate
K9 (voice)
1981

Doctor Who: State of Decay
K9 (voice)
1980

Doctor Who: Full Circle
K9 (voice)
1980

Doctor Who: Meglos
K9 (voice)
1980

Doctor Who: The Leisure Hive
K9 (voice)
1980

Tarka the Otter
Secretary of the Hunt
1979

Minder
Passport Officer · (1 episode)
1979

Doctor Who: The Armageddon Factor
K-9 (voice)
1979

Doctor Who: The Power of Kroll
Dugeen
1979

Doctor Who: The Androids of Tara
K-9 (Voice)
1978

Doctor Who: The Stones of Blood
K-9 (voice)
1978

Doctor Who: The Pirate Planet
K-9 (voice)
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

Blake's 7
Pasco · (1 episode)
1978

Blake's 7
Toise · (1 episode)
1978

Doctor Who: The Sun Makers
K9 Mk. I (voice)
1977

Doctor Who: The Invisible Enemy
K-9 Mk. I (voice) / Nucleus (voice)
1977

Rainbow
Bungle · (105 episodes)
1972
On the House
Young Man · (1 episode)
1970

Doctor Who
K9 (voice) · (80 episodes)
1963

Doctor Who
Dugeen · (4 episodes)
1963