John Leeson

John Leeson

Known for
Acting
Born
March 16, 1943
Died
November 1, 2026 (aged 83)
Birthplace
Leicester, Leicestershire, England, UK

Biography

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.

Known For

Photos

John Leeson photoJohn Leeson photo

Filmography

2025
The Doctor Who Escape Room: Team Third Doctor poster

The Doctor Who Escape Room: Team Third Doctor

Movie · as K9 (voice)

2024
Darkness & Light: The Life of Graham Williams poster

Darkness & Light: The Life of Graham Williams

Movie · as Self

2018
Doctor Who: Behind the Sofa poster

Doctor Who: Behind the Sofa

TV · as Self · 8 eps

2017
The Doctors: The Tom Baker Years poster

The Doctors: The Tom Baker Years

Movie

2015
Longleat '83: The Lost Footage poster

Longleat '83: The Lost Footage

Movie

2015
Myth Makers poster

Myth Makers

TV · as Himself · 1 ep

2013
The Five(ish) Doctors Reboot poster

The Five(ish) Doctors Reboot

Movie · as Self

2011
Pointless Celebrities poster

Pointless Celebrities

TV · as K-9 (voice) · 1 ep

2009
K-9 poster

K-9

TV · as K-9 (voice) · 26 eps

2008
Celebration: Doctor Who in 1983 poster

Celebration: Doctor Who in 1983

Movie

2008
The K-9 Files poster

The K-9 Files

Movie

2007
The Sarah Jane Adventures: Invasion of the Bane poster

The Sarah Jane Adventures: Invasion of the Bane

Movie · as K9

2007
A Matter of Time poster

A Matter of Time

Movie

2007
Parrot Fashion poster

Parrot Fashion

Movie

2007
Getting Blood from the Stones poster

Getting Blood from the Stones

Movie

2007
The Sarah Jane Adventures poster

The Sarah Jane Adventures

TV · as K9 (voice) · 10 eps

2005
Doctor Who poster

Doctor Who

TV · as K9 (voice) · 2 eps

2004
A New Beginning poster

A New Beginning

Movie

2003
Doctor Who: Shada poster

Doctor Who: Shada

Movie · as K9 (voice)

2001
Longleat '83: The Greatest Show in the Galaxy poster

Longleat '83: The Greatest Show in the Galaxy

Movie · as Himself - Host

2000
K9 Unleashed poster

K9 Unleashed

Movie

2000
Longitude poster

Longitude

TV · as BBC Producer · 1 ep

1998
Where on Earth Is Katy Manning? poster

Where on Earth Is Katy Manning?

Movie

1998
Vanity Fair poster

Vanity Fair

TV · as Priest · 1 ep

1995
Downtime poster

Downtime

Movie · as Anthony the D.J.

1995
Bugs poster

Bugs

TV · as Harris · 1 ep

1993
Doctor Who: Dimensions in Time poster

Doctor Who: Dimensions in Time

Movie · as K9 (voice)

1990
Search Out Space poster

Search Out Space

Movie · as K9 (voice)

1989
Shadow of the Noose poster

Shadow of the Noose

TV · as Dickinson · 1 ep

1988
Doctor Who: Remembrance of the Daleks poster

Doctor Who: Remembrance of the Daleks

Movie · as Dalek Battle Computer (voice)

1987
Myth Runner poster

Myth Runner

Movie · as Himself

1986
Whoops Apocalypse poster

Whoops Apocalypse

Movie · as TV Interviewer

1984
'Allo 'Allo! poster

'Allo 'Allo!

TV · as Train's Cook · 1 ep

1983
Doctor Who: The Five Doctors poster

Doctor Who: The Five Doctors

Movie · as K9 (voice)

1982
The Barretts of Wimpole Street poster

The Barretts of Wimpole Street

Movie · as Henry Barrett

1981
Doctor Who: Warriors' Gate poster

Doctor Who: Warriors' Gate

Movie · as K9 (voice)

1981
K-9 and Company: A Girl's Best Friend poster

K-9 and Company: A Girl's Best Friend

Movie · as K-9 (voice)

1981
K-9 and Company poster

K-9 and Company

TV · as K-9 (voice) · 1 ep

1980
Doctor Who: Meglos poster

Doctor Who: Meglos

Movie · as K9 (voice)

1980
Doctor Who: The Leisure Hive poster

Doctor Who: The Leisure Hive

Movie · as K9 (voice)

1980
Doctor Who: Full Circle poster

Doctor Who: Full Circle

Movie · as K9 (voice)

1980
Doctor Who: State of Decay poster

Doctor Who: State of Decay

Movie · as K9 (voice)

1979
Tarka the Otter poster

Tarka the Otter

Movie · as Secretary of the Hunt

1979
Doctor Who: The Power of Kroll poster

Doctor Who: The Power of Kroll

Movie · as Dugeen

1979
Doctor Who: The Armageddon Factor poster

Doctor Who: The Armageddon Factor

Movie · as K-9 (voice)

1979
Minder poster

Minder

TV · as Passport Officer · 1 ep

1979
Jigsaw poster

Jigsaw

TV · as Jig · 25 eps

1978
Doctor Who: The Ribos Operation poster

Doctor Who: The Ribos Operation

Movie · as K-9 (voice)

1978
Doctor Who: Underworld poster

Doctor Who: Underworld

Movie · as K-9 Mk. I (voice)

1978
Doctor Who: The Invasion of Time poster

Doctor Who: The Invasion of Time

Movie · as K9 (voice)

1978
Doctor Who: The Stones of Blood poster

Doctor Who: The Stones of Blood

Movie · as K-9 (voice)

1978
Doctor Who: The Androids of Tara poster

Doctor Who: The Androids of Tara

Movie · as K-9 (Voice)

1978
Doctor Who: The Pirate Planet poster

Doctor Who: The Pirate Planet

Movie · as K-9 (voice)

1978
Merry Christmas Doctor Who poster

Merry Christmas Doctor Who

Movie · as K9 (voice)

1978
Blake's 7 poster

Blake's 7

TV · as Toise, Pasco · 1 ep

1977
Doctor Who: The Sun Makers poster

Doctor Who: The Sun Makers

Movie · as K9 Mk. I (voice)

1977
Doctor Who: The Invisible Enemy poster

Doctor Who: The Invisible Enemy

Movie · as K-9 Mk. I (voice) / Nucleus (voice)

1975
Husband to Mrs. Fitzherbert

Husband to Mrs. Fitzherbert

Movie · as Clergyman

1972
Rainbow poster

Rainbow

TV · as Bungle · 105 eps

1970
On the House

On the House

TV · as Young Man · 1 ep

1968
Dad's Army poster

Dad's Army

TV · as Soldier · 1 ep

1968
The Spanish Farm

The Spanish Farm

TV · as Lt Mansfield · 1 ep

1963
Doctor Who poster

Doctor Who

TV · as K9 (voice), Dugeen, Daleks (voice) · 80 eps