Allegra Acosta
Allegra Acosta (born December 12, 2002) is an American actress and singer best known for playing the role of Molly Hernandez in the Hulu original series "Marvel's Runaways". Career. Allegra Acosta started singing and dancing at a young age. She and her family moved to Los Angeles so that she could pursue a serious career. She was cast as Molly Hernandez, a character based on Molly Hayes, on "Marvel's Runaways" which airs on Hulu as part of its original programming.