Francis de Wolff
From Tolkien Gateway
Francis de Wolff (January 7, 1913 - April 18, 1984) was a British actor. He worked in many Hammer Horror films, though the movies in which he is credited along with Hammer hero Christopher Lee are not horror movies. De Wolff was, like Lee, often cast as an antagonist, and he voiced Smaug in the 1968 radio series of The Hobbit.