Justin Berfield is an American actor and producer best known for his role as Reese, the second-oldest brother in the television sitcom Malcolm in the Middle.
He appeared in the role for 119 episodes, from 2000-2006, and also appeared in over 100 episodes of Unhappily Ever After. According to the Guinness Book of World Records 2004, that makes him the youngest actor in history to appear in 100 episodes of two different series.
He has had recurring roles in The Good Life; Hardball; The Mommies; and Kim Possible, and has guest starred on The Boys Are Back; Duckman: Private Dick/Family Man; The Nightmare Room; and The Fairly OddParents.
He has also had roles in the feature films Mom, Can I Keep Her? (1998); Wanted (1999); The Kid with X-ray Eyes (1999); and Max Keeble's Big Move (2001), as well as the direct-to-video releases Invisible Mom II (1999) and Who's Your Daddy? (2003).
In addition, he lent his voice to the 2004 animated made-for-TV movie Crash Nebula.
In 2005 he created, wrote and executive produced the reality series Filthy Rich: Cattle Drive, and co-produced the feature film Romance & Cigarettes in the same year.