John Sessions
From Tardis Wiki, the free Doctor Who reference
John Sessions (born John Gibb Marshall) is a RADA trained actor, comedian and sometimes panellist on British quiz comedies. He is particularly well known, at least in Britain, as one of the original regular panellists on Who's Line Is It Anyway? and, more recently, as a recurring guest on QI.
In televised Doctor Who, Sessions played Gus in Mummy on the Orient Express. For Big Finish Productions, he voiced Mozart in My Own Private Wolfgang, Roland of Brittany in Castle of Fear, and Wilson in The Conspiracy. He also voiced Tannis in the animated webcast Death Comes to Time. He was offered the role of the Eighth Doctor.