This document discusses the psychological profiles and potential treatment options for several characters from the show "The Grim Adventures of Billy and Mandy". Billy is described as severely mentally retarded and would require special education. Mandy shows signs of borderline personality disorder and the recommended treatment is dialectical behavior therapy, antidepressants, and anti-anxiety medication. Nergal Jr. has depressive personality disorder and may benefit from antidepressants. Jeff the Spider has separation anxiety and could receive family counseling and anti-anxiety drugs.