Andrea Chapman ~ "The pain doesn't go away, you just make room for it".

Andrea Chapman was born twelve years ahead of her sister. Because of their different personalities, their parents gave them different upbringings. During this time she was in college to study law, she remained distant from her family, frequently missing Amy's birthday parties. After getting a degree, she eventually became a successful civil rights attorney. Before Andrea and Amy went on a road trip, their father gave Andrea a gun for protection. She has remained protective over the gun ever since.

As they were heading back to Amy's college after the trip, they were caught in the initial stages of the outbreak. They were stranded in Atlanta when they were rescued by Dale Horvath, and soon met up with a band of other survivors.

Andrea is intelligent, cautious, and brave. She was extremely protective of her younger sister before her death. Never one to shy away from a challenge or a fight, Andrea is stubborn, opinionated and first and foremost interested in keeping herself and those she cares about most out of harms way. Her closeness to Amy is what directly influences her into becoming suicidal around the end of season one and possibly her reason to punish Dale, as she blames him for not letting her go. During season two, she begins to become more independent, even considering leaving the group, and wanting to keep the gun her father gave her, despite Dale's disapproval due to her lack of gun knowledge and brief suicidal streak. However, after adequate training with Shane, she becomes quite efficient with firearms. By season three, she had been separated with the group after the farm was overrun, and was saved by Michonne; with whom she forms a close bond.

After being brought to Woodbury, she begins a relationship with The Governor, which eventually ends when Andrea realizes that The Governor has a dark, sadistic nature.