Madeleine is a 13-year-old girl who is the lead character in a horror trailer. She lives with her parents and enjoys ballet and gymnastics. Her name was chosen to be common and relatable to audiences to make the trailer scarier. She will be dressed in stereotypical young girl clothes like a colorful birthday dress found at a charity shop, with her hair in a plait or ponytail as those styles are most common for 13-year-old girls.