Collin Dean (born January 8, 2005) is an American actor. He is best known for when he co-starred with Elijah Wood in the 2014 Cartoon Network miniseries Over the Garden Wall. Collin Dean (born January 8, 2005) is an American actor. He is best known for when he co-starred with Elijah Wood in the 2014 Cartoon Network miniseries Over the Garden Wall.