Biography
Timothy Stack is an American actor, screenwriter and producer. Born in Doylestown, Pennsylvania, he graduated from Boston College in 1978 and joined the improv troupe the Groundlings in Los Angeles in 1979.
He is known for guest roles including Dwayne on Seinfeld (1993), Mr. Plenitzer on The Wonder Years (1993) and Sam on Malcolm in the Middle (2005). Stack starred as Dick Dietrick on Night Stand with Dick Dietrick (1995–1997) and as Notch Johnson on Son of the Beach (2000–2002), and recurred as TV's Tim Stack on My Name Is Earl (2005–2009), for which he also wrote and produced episodes. His film appearances include Cast Away (2000) and Scary Movie 3 (2003).
