
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.
Movie Appearances

K9 Unleashed
2000

Longleat '83: The Lost Footage
2015

Doctor Who: Dimensions in Time
as K9 (voice)
1993

The Five(ish) Doctors Reboot
as Self
2013

Downtime
as Anthony the D.J.
1995

The Doctors: The Tom Baker Years
2017

Tarka the Otter
as Secretary of the Hunt
1979

The Sarah Jane Adventures: Invasion of the Bane
as K9
2007

Doctor Who: The Ribos Operation
as K-9 (voice)
1978

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

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

Doctor Who: Underworld
as K-9 Mk. I (voice)
1978

Doctor Who: The Invasion of Time
as K9 (voice)
1978

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

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

Doctor Who: Meglos
as K9 (voice)
1980

Doctor Who: The Power of Kroll
as Dugeen
1979

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

Doctor Who: The Leisure Hive
as K9 (voice)
1980

Doctor Who: Warriors' Gate
as K9 (voice)
1981
TV Appearances

The Sarah Jane Adventures
as K9 (voice)
2007

K-9 and Company
as K-9 (voice)
1981

Sorry!
1981

'Allo 'Allo!
as Train's Cook
1984

K-9
as K-9 (voice)
2009

Pointless Celebrities
as K-9 (voice)
2011

Doctor Who
as K9 (voice)
1963

Doctor Who
as Dugeen
1963

Rainbow
as Bungle
1972

Doctor Who
as K9 (voice)
2005

Minder
as Passport Officer
1979

Blake's 7
as Pasco
1978