Best known for his role as Dewey, the younger brother on the hit show Malcolm in the Middle.
He is known for his work on Malcom, but also for such films as the Academy Award-winning The Cider house Rules.
He played the son of future Breaking Bad star Bryan Cranston on Malcolm in the Middle.
He had a wide variety interests as a youngster including saxophone and Tae Kwon Do, in which he has a black belt.
His father, Fred, owns a Mexican restaurant in Massachusetts called The Alamo.
- The meaning of the name Sullivan: Dark-eyed