Samuel Bryce "Sam" Lerner (born September 27, 1992) is an American actor, who made his major debut as the role of Chowder in the 2006 Oscar-nominated computer-animated film, Monster House. Lerner also played a lead role in the feature film Envy as the son of Ben Stiller and Rachel Weisz. Lerner was cast as the son of Wendy Malick and Sam Robards in the ABC-TV pilot My Life With Men, and as the son of John Leguizamo and Claire Forlani for an untitled Brett Ratner-directed pilot for CBS-TV.