Simon Fisher-Becker played Dorium Maldovar in the Doctor Who stories The Pandorica Opens, A Good Man Goes to War, and The Wedding of River Song. He also played the Time Lord Science Minister Kavil in series 5 of Gallifrey stories Emancipation, Evolution and Arbitration.
As well as his role in Doctor Who, he is known for appearing in the popular Harry Potter film franchise, albeit briefly, and for playing the Fat Controller from Thomas the Tank Engine for ten years.