Who's the male drug addict, young boy who gets picked on, the mom's sister, and the mom's mom Pay It Forward?

The male drug addict is named Jerry and is portrayed によって Jim Caviezel. The young boy is named Adam, the actor who plays him is Marc Donato. Arlene, the mom, does not have any siblings. Arlene's mother is Grace, whom is portrayed through Angie Dickinson.