"Time Crash" is a mini-episode of the British science fiction television series Doctor Who. It was broadcast on 16 November 2007, as part of the BBC One telethon for the children's charity Children in Need. Written by Steven Moffat, it starred David Tennant and brought back Peter Davison as the Doctor.

Steven William Moffat is a Scottish television writer, television producer and screenwriter. He is best known for his work as the second showrunner and head writer of the 2005 revival of the BBC sci-fi television series Doctor Who and co-creating and co-writing the contemporary crime drama television series Sherlock, based on Sir Arthur Conan Doyle's Sherlock Holmes stories. In the 2015 Birthday Honours, Moffat was appointed Officer of the Order of the British Empire (OBE) for his services to drama.