Ponytail is one of the Cranks Thomas and Brenda meet in The Scorch Trials, along with Blondie. She has her hair in a red ponytail, which was how Thomas came up the nickname Ponytail for her. In the books, she wears a low cut shirt and threatens Thomas and Brenda with a screwdriver when they do not want to join the party.
"I get weepy when I see two people in love." The Scorch Trials