John Leeson (born 16 March 1943) is an English actor. Although he has played on-screen roles, he is best known for two voice-only roles: Bungle in
Rainbow and the Doctor's robot dog companion
K9 in
Doctor Who.
He voiced K9 in Seasons 15 and 16 of Doctor Who, starting with the characters introduction in "The Invisible Enemy", before leaving after two seasons, handing over the role to David Brierly for Season 17. When Brierley left after one season, Leeson agreed to return for Season 18 on the understanding that K9 would be written out during the season, which he was in "Warriors' Gate".
Subsequently, Leeson has made guest return appearances in "The Five Doctors", "School Reunion" and "Journey's End".
His roles in works with pages on TV Tropes:
TV- Crossroads: 6 episodes (1967-68) — Henri de Burgoyne
- Dad's Army: episode "Sons of the Sea" (1969) — Soldier
- Rainbow: 50 episodes (1972) — Bungle
- Doctor Who:
- 56 episodes / 18 storiesshow list "The Invisible Enemy", "The Sun Makers", "Underworld", "The Invasion of Time", "The Ribos Operation", "The Pirate Planet", "The Stones of Blood", "The Androids of Tara", "The Armageddon Factor", "The Leisure Hive", "Meglos", "Full Circle", "State of Decay", "Warriors' Gate", "The Five Doctors", "School Reunion", "Journey's End" (1977-79, 1980-81, 1983, 2006, 2008) — K9 (voice)
- 4-episode story "The Power of Kroll" (1978-79) — Dugeen
- 3-episode story "Remembrance of the Daleks" (1989) — Dalek Battle Computer (voice)
- Blake's 7, episodes:
- Jigsaw: episode "Spring" (1979)
- K-9 and Company: "A Girl's Best Friend " (1981) — K9 (voice)
- 'Allo 'Allo!: episode "Flight to Geneva" (1989) — Train's Cook
- The Bill: episode "Out of the Mouths" (1993) — Mr. Witchell
- Children in Need: "Dimensions in Time" (1993) — K9 (voice)
- Bugs: episode "Manna from Heaven" (1995) — Harris
- Doctors: episode "A Parent's Right to Choose" (2001) — Alan Carmichael
- Chuckle Vision: episode "Big Break" (2007) — Viscount
- K9: 26 episodesshow list "Regeneration", "Liberation", "The Korven", "The Bounty Hunter", "Sirens of Ceres", "Fear Itself", "The Fall of the House of Gryffen", "Jaws of Orthrus", "Dream-Eaters", "Curse of Anubis", "Oroborus", "Alien Avatar", "Aeolian", "The Last Oak Tree", "Black Hunger", "The Cambridge Spy", "Lost Library of Ukko", "Mutant Copper", "The Custodians", "Taphony and the time Loop", "Robot Gladiators", "Mind Snap", "Angel of the North", "The Last Precinct", "Hound of the Korven", "The Eclipse of the Korven" (2009-10) — K9 (voice)
- The Sarah Jane Adventures: 12 episodes / 9 storiesshow list "Invasion of the Bane", "The Lost Boy", "From Raxacoricofallapatorius With Love", "The Mad Woman in the Attic", "The Wedding of Sarah Jane Smith", "Mona Lisa's Revenge","The Gift", "The Nightmare Man", "Goodbye, Sarah Jane Smith" (2007-10) — K9 (voice)
Audio Play
- Big Finish Doctor Who:
- Main Range: "Zagreus" (2003) — K9
- Special Releases: "Shada" (2003) — K9
- Gallifrey: 18 releasesshow list "Weapon of Choice", "Square One", "The Inquiry", "A Blind Eye", "Lies", "Pandora", "Insurgency", "Imperiatrix", "Fractures", "Warfare", "Appropriation", "Mindbomb", "Panacea", "Reborn", "Disassembled", "Annihilation", "Forever", "Ascension" (2004-13) — K9
- The Companion Chronicles: "The Time Vampire" (2010) — K9
- The Fourth Doctor Adventures: 32 releasesshow list "The Sands of Life", "Phantoms Of The Deep", "The Dalek Contract", "The Final Phase", "The Exxilons", "Requiem For The Rocket Men", "Death Match", "The Fate of Krelos", "Return to Telos", "Wave of Destruction", "The Paradox Planet", "Legacy of Death", "The Trouble With Drax", "The Pursuit of History", "Casualty of Time", "The Beast of Kravenos", "The Eternal Battle", "The Silent Scream", "The Mind Runners", "The Demon Rises", "Planet of the Drashigs", "The False Guardian", "Time's Assassin", "Fever Island", "The Perfect Prisoners: Part One", "The Perfect Prisoners: Part Two", "Purgatory 12", "Chase the Night", "The Planet of Witches", "The Quest of the Engineer", "Shadow of the Sun", "Dalek Universe: The Dalek Protocol" (2013-21) — K9
- Novel Adaptations: 3 releasesshow list "The Romance of Crime", "The English Way of Death", "The Well-Mannered War" (2015) — K9
- The Diary of River Song: "A Forever Home" (2021) — K9
- The Lost Stories: "The Doomsday Contract" (2021) — K9
- The Eighth of March: "Emancipation" (2022) — K9
- Big Finish Blake's 7:
- The Liberator Chronicles Volume 11: "Escape from Destiny" (2015) — Pasco
