Although he considered as a "Wimp"; he has a problematic behavior in many cases, and he often puts himself and his family into trouble. Typically he is looking to find a scapegoat to blame, and very few times admits being "wrong", but he also seems to feel caring for others and as such is willing to give of himself to people he loves, especially Rodrick. The parents of his best friend, Rowley, believe Greg is a bad influence on their son (mainly Rowley's dad) because he sometimes gets bad grades in school, do not focus on his studies like he's supposed to, and barely listens to his parents.