Greg is a gay man married to Sue's friend Ginny. He often cheats on her with men, and sometimes tries to get her to behave more like a man herself. Father Pat "saved" their marriage through counseling. In Pray Away it is revealed that he feels incredibly guilty over putting Ginny through a sham of a marriage, and having two children with her. He begs her to divorce him, but she is clearly in denial over his true sexuality.
- His name and phone number are graffiti'd on the bowling alley bathroom.