Alexander Henry Fenwick Armstrong (born 2 March 1970) is an English actor, comedian, broadcaster and singer. He hosts the BBC One game show Pointless, and presents a weekday morning show on Classic FM. Armstrong is a member of the comedy duo Armstrong and Miller, with Ben Miller. His television credits include Armstrong and Miller, Beast, Life Begins, Hunderby and Danger Mouse. He is the voice of Mr Smith, Sarah Jane Smith's alien supercomputer in The Sarah Jane Adventures and the series four two-part finale of Doctor Who. He is also the narrator for the hit CBeebies show Hey Duggee. Armstrong is a bass-baritone singer and has released three studio albums. (Via Wikipedia)