Jeremy Webb
From Tardis Wiki, the free Doctor Who reference
Jeremy Webb directed the Doctor Who Series 6 episodes The Curse of the Black Spot and The Wedding of River Song.
Before joining Doctor Who, Webb had worked extensively on Merlin — another BBC One fantasy show — helming several episodes for each of the its first three seasons. The Curse of the Black Spot made him the fourth director to have worked on both shows, following James Hawes, Alice Troughton and Ashley Way.