Young Sherlock Holmes

• Death Cloud (2010)

Virgin New Adventures

• Lucifer Rising (1993) (with Jim Mortimore)
• All-Consuming Fire (1994)
• Original Sin (1995)

Virgin Missing Adventures

• The Empire of Glass (1995)

Eighth Doctor Adventures

• The Banquo Legacy (2000) (with Justin Richards)

Torchwood

• Slow Decay (2007)

Other TV-related novels and novelisations

• Bugs : A Sporting Chance (1996)
• Randall and Hopkirk : Ghost in the Machine (2000)

TV and film-related non-fiction

• The Babylon File (1997)
• The Bond Files: The Unofficial Guide to Ian Fleming's James Bond (1998) (with Paul Simpson)
• The Babylon File: Volume 2 (1999)
• Randall and Hopkirk - The Files (2001)
• The World of Austin Powers (2002)
• Creating Creature Comforts (2003)
• The World of Wallace and Gromit (2004)
• The World of The Magic Roundabout (2005) (with Paul Simpson)
• The Art of The Curse of the Were-Rabbit (2005) (with Paul Simpson)

• ‘Living in the Past’ (in Doctor Who Magazine, Issue 162, July 1990)
• ‘Crawling From the Wreckage’ (in The Ultimate Witch, Dell 1993)
• ‘The More Things Change’ (in Doctor Who Yearbook, 1994)
• ‘Lovers, and Other Strangers’ (in Interzone, issue 87, September 1994)
• ‘Fallen Angel' (in Decalog, Virgin 1994)
• ‘It’s Only a Game' (in Doctor Who Yearbook, 1995)
• ‘Faceless in Ghazar’ (in Blake’s Seven Poster Magazine. Issue 2, Jan 1995)
• ‘The Old, Old Story’ (in The Ultimate Dragon, 1995)
• ‘Saving Face’ (in Full Spectrum 5, 1995)
• ‘Where the Heart Is’ (in Decalog 2, 1995)
• ‘Four Angry Mutants’ (with Rebecca Levene) (in The Ultimate X-Men, 1996)
• ‘Dependence Day’ (with Justin Richards) (in Decalog 4, 1997)
• ‘No Experience Necessary’ (in Odyssey issue 2, 1997)
• ‘As Near to Flame as Lust to Smoke’ (in Shakespearean Detectives, 1998)
• ‘The Gaze of the Falcon’ (in The Mammoth Book of Royal Whodunnits, 1998)
• ‘Blood on the Tracks’ (in Bernice Summerfield - Missing Adventures, 2007)
• ‘Only Connect’ (in Short Trips - Transmissions, 2008)
• ‘The Beauty of Our Weapons’ (in Torchwood Yearbook, 2008)
• ‘Who by Fire?’ (in Torchwood Magazine, Issue 14 ; 2009)
• ‘Closing Time’ (in Torchwood Magazine, Issues 16 & 17; 2009)

Space Island One

• ‘Awakenings’ (story) (1998)
• ‘Mayfly’ (script) (1998)
• ‘Money Makes the World Go Around’ (story) (1998)

Doctor Who

• The Companion Chronicles: ‘Here There Be Monsters’ (June 2008)
• The Companion Chronicles: ‘The Mahogany Murderers’ (June 2009)
• A Thousand Tiny Wings (April 2010)
• Paradise 5 (with P J Hammond) (April 2010)
• The Adventures of Jago and Litefoot: ‘The Similarity Engine’ (June 2010)