Roy’s biological father and his third cellmate while in prison, though the two live together for some time before Roy discovers Walter’s true identity. Walter’s nickname, Ghetto Yoda, comes from his tendency to dole out wisdom to the other inmates. He fathered many children with different women before being incarcerated, and many women from personal ads visit him in prison. He refers to Roy as his son, though Roy only refers to Walter as his father in a goodbye letter to him.