Amanda Leighton is an American actress. She is known for her voice acting work as Blossom in the 2016 Cartoon Network animated series The Powerpuff Girls, Poppy in the 2018 Netflix animated series Trolls: The Beat Goes On! and Polly in the 2019 Disney Channel animated series Amphibia. She is also known for her recurring role as Emma in the Freeform drama series The Fosters.