Scottish actor
David O'Hara has been
cast as Ministry of Magic employee Albert Runcorn in
Deathly Hallows. Runcorn was the dubious official whom Harry turned into via Polyjuice Potion in order to break into the Ministry and get the locket Horcrux. Photos of David can be seen
here:
Harry Potter and the Deathly Hallows will be released on November 19, 2010 and July 15, 2011.