Simon Fisher-Becker
From Tardis Wiki, the free Doctor Who reference
Simon Fisher-Becker played Dorium in the Doctor Who story The Pandorica Opens, A Good Man Goes to War and then again in The Wedding of River Song.
Simon Fisher-Becker has also embrassed the fan community by agreeing to appear in the very popular, Second Life Adventures called "Doctor Who: Secrets of Earth" as an undisclosed role.
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.