Katie Davis is a mentioned character in the novel Final Destination: Looks Could Kill. She was the wife of Delbert Davis and the grandmother of Brut. Living with their three sons and four daughters, Katie's husband began an incestuous relationship with their daughter Becky, and soon enough, Brut was born. Becky left home shortly afterwards and fell in love with a man named Beau Taylor. After writing a letter to her mother explaining the engagement, she was so happy that she invited her daughter over for a family reunion. However, this infuriated Delbert.
Katie and her entire family were slaughtered by Delbert during the reunion. It was not specified how Katie died, but she, as well as her three sons and four daughters, had been killed.