Kristie is Kirstie's great grandaughter and Ruby's Grandaughter. She looks just like Kirstie apart from lighter hair and blue eyes. Her personality is more stubborn but can just be as annoying as Kirstie. She loves gossiping, even if there is nothing to gossip about.

She recently joined Torchwood even though she didn't know what it is. She was hoping to get pictures of it to send to the news or the internet, but failed miserably.

At the Christmas party she found out that her great grandmother was still alive and living there. Kristie still doesn't know much about Torchwood, aliens and time travel and still gets confused at the concept.

She has one brother, but her parents died when she was young.