44 credits
- Tales of the Tardis
2023 Writer
- Rex the Runt: A Runt is Not Just for Christmas
2021 In Memory Of
- Axon Stations!
2012
- Into the Unknown
2010
- Wallace & Gromit's World of Invention
2010 Writer
- K-9
2009 Creator
- A Matter of Loaf and Death
2008 Author
- A Matter of Time
2007
- Defining Shadows
2007
- The Omega Factor
2007
- Wallace & Gromit: The Curse of the Were-Rabbit
2005 Screenplay
- K9 Unleashed
2000
- A Close Shave
1996 Writer
- Wallace & Gromit: The Best of Aardman Animation
1996 Scenario Writer
- The Wrong Trousers
1993 Writer
- The Jazz Detective
1992 Writer
- Succubus
1987 Writer
- Call Me Mister
1986 Writer
- Into the Labyrinth
1981 Writer
- Bergerac
1981 Writer
- Smuggler
1981 Writer
- Doctor Who: The Armageddon Factor
1979 Writer
- Doctor Who: Nightmare of Eden
1979 Writer
- Shoestring
1979 Writer
- Murder at the Wedding
1979 Writer
- Doctor Who: Underworld
1978 Writer
- Scorpion Tales
1978 Writer
- Doctor Who: The Invisible Enemy
1977 Writer
- Target
1977 Writer
- Cottage to Let
1977 Writer
- Machinegunner
1976 Writer
- Doctor Who: The Hand of Fear
1976 Writer
- Doctor Who: The Sontaran Experiment
1975 Writer
- Sky
1975 Writer
- Item
1974 Writer
- Doctor Who: The Three Doctors
1973 Writer
- Doctor Who: The Mutants
1972 Writer
- Pretenders
1972 Writer
- Doctor Who: The Claws of Axos
1971 Writer
- Doctor Who
1963 Writer
- Z-Cars
1962 Writer
