The actor Christopher Lloyd has a roughly deep and gravelly sounding voice .
He has done extensive voice work , including Merlock in DuckTales the Movie ( 1990 ) , Grigori Rasputin in Anastasia ( 1997 ) , The Woodsman in Cartoon Network miniseries Over the Garden Wall ( 2014 ) , and the Hacker in PBS Kids series Cyberchase ( 2002–present ) , which earned him two further Emmy nominations .
Christopher Lloyd