Mattie Donovan

Mattie Donovan played by Skyler Shaye is the ex-girlfriend of Carter Forbes and Ethan Gilbert, sister of Vincent Donovan. After the death of Ethan's parents, Ethan broke up with Mattie due to needing some time alone to deal with all the things that had happened, although Mattie still cares about Ethan deeply. Throughout the series, Carter and Mattie begin dating; she encourages him to become a more caring, kind, and selfless young man. She is Jenny's best friend.