Black Widow
2021 · Thanks
Loki
2021 · Thanks
Superman & Lois
2021 · Thanks
Doctor Who: Shadow of a Doubt
2020 · Writer
Doctor Who: The Shadow in the Mirror
2020 · Writer
Dr. Forever!
2013 · Himself
Elementary
2012 · Writer
Pulse
2010 · Writer
Celebration: Doctor Who in 1983
2008
Primeval
2007 · Writer
Robin Hood
2006 · Writer
Doctor Who
2005 · Writer
Terrance Dicks: Fact & Fiction
2005
Doctor Who: The Scream of the Shalka
2003 · Writer
Doctor Who: Scream of the Shalka
2003 · Writer
Doctor Who: Scream of the Shalka
2003 · Creator
Born and Bred
2002 · Writer
Love in the 21st Century
1999 · Writer
Kingdom Come
1990 · Writer
Debut on Two
1990 · Writer
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