Hannah

"GET AWAY FROM MY FAMILY!"

- Hannah to a zombified Judy when she kills her Hannah or "Bicycle Girl" is the protagonist to The Walking Dead: Webisode, Torn Apart. She is the ex-wife of Andrew and mother of Billy and Jamie. She is portrayed by Lilli Birdsell when she's alive and Melissa Cowan when she's zombified.

Before the Outbreak
Before the outbreak, she was previously married to Andrew and had two kids with but for a unknown reason, they divorced but it's likely because they had tension between each other due to Hannah showing somewhat dislike for Andrew, even when the apocalypse started.

A New Day
Hannah first wakes up in her car after a car crash she had offscreen. She gets out of the car looks around and sees a corpse by a picnic table, dead (presumably by a gunshot to the head). She then runs until spotting a Construction Worker Zombie (along with a Female Zombie) devouring a female corpse. The zombie stops and starts coming after Hannah, causing her to run to her ex-husband's house, Andrew comes out with a shotgun and shoots the zombie in the head, saving Hannah.