Mustrum Ridcully, D.Thau., D.M., D.S., D.Mn., D.G., D.D., D.C.L., D.M. Phil., D.M.S., D.C.M., D.W., B.El.L., is a wizard in the Discworld novels of Terry Pratchett. He was introduced in Moving Pictures as the latest Archchancellor of the Unseen University. He is also known as Ridcully the Brown, possibly as a parody of J. R. R. Tolkien's Radagast the Brown. In the Cosgrove Hall animation of Soul Music he was voiced by Graham Crowden. In the film version of Hogfather he was played by Joss Ackland.