He's written for the Doctor and Sarah Jane Smith on TV, in books and on audio. He's pitted James Corden against Cybermen, and Catherine Tate against a giant wasp. But how would Gareth Roberts - writer of this week's episode The Caretaker - get on when he faced our quick-fire questions?
Infographic: TIme Lord Timelines
As we're sure you're all well aware, from a non-linear, non-subjective viewpoint, time is like a big ball of wibbly-wobbly, timey-wimey stuff.
In an effort to try and show just how wibbly, we've produced this infographic, using data gathered from Doctor Who fans all over the internet, showing the journeys of each of the Doctors, from First to Eleventh.
Click on the Doctors faces (below) to highlight their time-trips, and click on individual journey lines to view details and watch clips of that adventure.
Time Heist gave us a rare old burst of nostalgia, as Psi thought about all the worse thieves in the universe. But, in case you missed it, just who were those rogues?
Shaun of the Dead star Nick Frost, Natalie Gumede, Faye Marsay, Nathan McMullen and Michael Troughton will join Peter Capaldi and his companion Jenna Coleman in the 2014 Doctor Who Christmas Special.
In Case You Missed it, here's our trivia guide to Listen...