The film is noted for its "stacked" cast of well-known comedic and character actors.
: Expecting his biological parents to be as refined as the wealthy Claytons who raised him, Richard tracks down Frank and Agnes Menure ( Danny DeVito and Kathy Bates ).
: 34-year-old Richard Clayton ( Ron Livingston ) has a seemingly perfect life with a successful career and a beautiful fiancée, Ellen ( Neve Campbell ). His world is turned upside down when his jealous brother, Mitch ( Bob Odenkirk ), reveals he was adopted.
: Ellen Minnola, Richard's supportive fiancée.
: Agnes Menure, Richard's equally unrefined biological mother.