The actor who played Harry H. Corbett in The Curse of Steptoe also played which character in the Harry Potter films?
The Curse of Steptoe:  It stars Jason Isaacs as Harry H. Corbett and Phil Davis as Wilfrid Brambell. Jason Isaacs:  He is known for playing Lucius Malfoy in the "Harry Potter" films, Colonel William Tavington in "The Patriot", and criminal Michael Caffee in the American television series "Brotherhood".
Lucius Malfoy