Christel Dee (Author) Cosplayer, convention enthusiast and long-time Whovian Christel Dee is the presenter of Doctor Who- The Fan Show. Her popular YouTube channel features interviews with fans and cosplayers about their costumes and experiences. Simon Guerrier (Author) Simon Guerrier is co-author of Whographica and The Scientific Secrets of Doctor Who for BBC Books, and has written countless Doctor Who books, comics, audio plays and documentaries. In 2016, Simon was a guest on Front Row and The Infinite Monkey Cage on Radio 4, and with his brother Thomas, makes films and documentaries - most recently John Ruskin's Eurythmic Girls.