Alexander Armstrong

Alexander Armstrong (born 2 March 1970) voiced Mr Smith in The Sarah Jane Adventures, Sarah Jane's Alien Files, and the Doctor Who episodes The Stolen Earth/Journey's End. He appeared in Doctor Who again as Reg Arwell in The Doctor, the Widow and the Wardrobe.

In addition to acting, Armstrong is a well-known comic and presenter. He wrote and starred in with his longtime comedy partner Ben Miller. In 2009, Armstrong and Miller's work on The Armstrong & Miller Show won them a BAFTA for "Best Comedy Programme." He is the presenter of BBC1 gameshow, including the Doctor Who edition of Pointless Celebrities.