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

HD

The Doctor Who Escape Room: Team Third Doctor

2025 ⭐ 10.0

HD

The Five(ish) Doctors Reboot

2013 ⭐ 7.8

HD

The Sarah Jane Adventures: Invasion of the Bane

2007 ⭐ 7.2

HD

Doctor Who: Shada

2003 ⭐ 7.3

Career timeline

2025

The Doctor Who Escape Room: Team Third Doctor Notable

K9 (voice) · 2025

⭐ 10.0

2024

Darkness & Light: The Life of Graham Williams

Self · 2024

2017

The Doctors: The Tom Baker Years

2017

2015

Longleat '83: The Lost Footage

2015

2013

The Five(ish) Doctors Reboot Notable

Self · 2013

⭐ 7.8

2008

The K-9 Files

2008

Celebration: Doctor Who in 1983

2008

2007

A Matter of Time

2007

Parrot Fashion

2007

Getting Blood from the Stones

2007

2004

A New Beginning

2004

2003

Doctor Who: Shada Notable

K9 (voice) · 2003

⭐ 7.3

2001

Longleat '83: The Greatest Show in the Galaxy Notable

Himself - Host · 2001

⭐ 7.0

2000

K9 Unleashed Notable

2000

⭐ 8.0

1998

Where on Earth Is Katy Manning? Notable

1998

⭐ 8.5

1995

Downtime

Anthony the D.J. · 1995

⭐ 5.7

1993

Doctor Who: Dimensions in Time

K9 (voice) · 1993

⭐ 4.8

1990

Search Out Space Notable

K9 (voice) · 1990

⭐ 8.0

1988

Doctor Who: Remembrance of the Daleks Notable

Dalek Battle Computer (voice) · 1988

⭐ 9.2

1987

Myth Runner Notable

Himself · 1987

⭐ 10.0

1986

Whoops Apocalypse

TV Interviewer · 1986

⭐ 5.7

1983

Doctor Who: The Five Doctors Notable

K9 (voice) · 1983

⭐ 7.8

1982

The Barretts of Wimpole Street Notable

Henry Barrett · 1982

⭐ 8.0

Frequently appears with

Daisy Ashford

Self

Katy Manning

Self

Sadie Miller

Self

Peter Davison

Self

Colin Baker

Self

Sylvester McCoy

Self

Steven Moffat

Self

Paul McGann

Self

Full filmography

HD

The Doctor Who Escape Room: Team Third Doctor

2025 ⭐ 10.0

HD

Darkness & Light: The Life of Graham Williams

2024

HD

The Doctors: The Tom Baker Years

2017

HD

Longleat '83: The Lost Footage

2015

HD

The Five(ish) Doctors Reboot

2013 ⭐ 7.8

HD

The K-9 Files

2008

HD

Celebration: Doctor Who in 1983

2008

HD

A Matter of Time

2007

HD

Parrot Fashion

2007

HD

Getting Blood from the Stones

2007

HD

The Sarah Jane Adventures: Invasion of the Bane

2007 ⭐ 7.2

HD

A New Beginning

2004

HD

Doctor Who: Shada

2003 ⭐ 7.3

HD

Longleat '83: The Greatest Show in the Galaxy

2001 ⭐ 7.0

HD

K9 Unleashed

2000 ⭐ 8.0

HD

Where on Earth Is Katy Manning?

1998 ⭐ 8.5

HD

Downtime

1995 ⭐ 5.7

HD

Doctor Who: Dimensions in Time

1993 ⭐ 4.8

HD

Search Out Space

1990 ⭐ 8.0

HD

Doctor Who: Remembrance of the Daleks

1988 ⭐ 9.2