Andrea is a main character first encountered in Issue 2 of Image Comics' The Walking Dead and is the sister of Amy. She can also be considered as the tritagonist of the series and after the death of Lori Grimes, she became the lead female of the series. She is a tough and skilled woman, being very talented with firearms, becoming one of the group's key defenders. She formed a relationship with Dale, who both later adopted Ben and Billy after their father's death. She is the current girlfriend of Rick Grimes.