Doctor Who has also spawned numerous spin-offs, including comic books, films, novels, audio dramas, and the television series Torchwood (2006–2011), The Sarah Jane Adventures (2007–2011), K-9 (2009–2010), and Class (2016), and has been the subject of many parodies and references in popular culture.
Doctor Who har også affødt talrige spin-offs, inklusiv tegneserier, film, romaner, lydbøger, og TV-serierne Torchwood (2006–2011), The Sarah Jane Adventures (2007–2011), K-9 (2009–2010), og Class (2016), og er blevet subjekt for mange parodier og referencer i populær kultur.