Swedish-American actor Erik Per Sullivan was born on July 12, 1991 in Worcester, Massachusetts. An only child, he grew up studying piano and the alto saxophone, along with becoming fluent in his mother’s native Swedish and earning a first-degree black belt in tae kwon do. Aside from playing Dewey Wilkerson in the hit Fox sitcom Malcolm in the Middle, he also landed supporting roles in in two Academy Award-winning films: Finding Nemo and The Cider House Rules. Erik Per Sullivan presently attends the Mount Saint Charles Academy in Woonsocket, Rhode Island.

Dewey Wilkerson is portrayed by Erik Per Sullivan in the television comedy Malcolm in the Middle. Though he’s the second youngest sibling, he appears to be just as smart as the genius Malcolm, and often hides his intelligence to take advantage of others. He’s shown easily manipulating his family, such as the episode “Dewey’s Opera” where he set up a huge fight between mother Lois and father Hal so he could watch them and get ideas for the opera he was writing. Another was during “Stevie in the Hospital”, wherein he made his mother think she was going crazy by sabotaging her daily routine and messing up her clothes.