Justin Tyler Berfield is an American writer, producer and retired actor. He is known for his portrayals of Reese on the family sitcom Malcolm in the Middle and Ross Malloy on The WB sitcom Unhappily Ever After. As of 2010, Berfield is Chief Creative Officer of Virgin Produced, a film and television development, packaging, and production company announced in 2010 by the Virgin Group.

Malcolm in the Middle is an American sitcom created by Linwood Boomer for Fox. The series premiered on January 9, 2000, and ended on May 14, 2006, after seven seasons consisting of 151 episodes.