Kelli Berglund (born February 9, 1996) is an American actress. She is known for playing Bree Davenport in the Disney XD series "Lab Rats" and its spin-off "". In 2014, she played Mae Hartley in the Disney Channel Original Movie "How to Build a Better Boy". She later played Carly Carson in the 2019 Starz television drama series "Now Apocalypse". 