Worcester, Massachusetts, USA | 1991-07-12

From Wikipedia, the free encyclopedia. Erik Per Sullivan (born July 12, 1991) is an American actor best known for his role as Dewey, the younger brother to middle child Malcolm, on the FOX series, Malcolm in the Middle which was on air for 7 years. Description above from the Wikipedia article Erik Per Sullivan, licensed under CC-BY-SA, full list of contributors on Wikipedia.