Question: What character did this actor, who also played a supporting role in Sleepy Hollow, play in the final six Harry Potter films?
Sentence (from "Sleepy Hollow (film)"): It is a film adaptation loosely inspired by the 1820 short story "The Legend of Sleepy Hollow" by Washington Irving and stars Johnny Depp and Christina Ricci, with Miranda Richardson, Michael Gambon, Casper Van Dien, and Jeffrey Jones in supporting roles.
Relevant evidence: Yes