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 ).

: Frank Menure, Richard's crude biological father.

: Ellen Minnola, Richard's supportive fiancée.

: Agnes Menure, Richard's equally unrefined biological mother.