
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
TV • 2005

Doctor Who
TV • 1963

Doctor Who
TV • 1963

Minder
TV • 1979

Rainbow
TV • 1972

Pointless Celebrities
TV • 2011

'Allo 'Allo!
TV • 1984

Blake's 7
TV • 1978

Blake's 7
TV • 1978

Bugs
TV • 1995

Dad's Army
TV • 1968

The Sarah Jane Adventures
TV • 2007

Vanity Fair
TV • 1998

Longitude
TV • 2000

Sorry!
TV • 1981

Myth Makers
TV • 2015

Shadow of the Noose
TV • 1989

Doctor Who: Behind the Sofa
TV • 2018