Clara Stack

Career overview

Clara Stack is an American actress who began her professional work in theater before transitioning to on‑screen roles. Her early television appearances include parts in the series Madam Secretary, Bull and Almost Family, establishing her presence in a range of network dramas. Stack’s breakout role came in 2021 when she was cast as Young Kate Bishop in the Marvel Studios series Hawkeye, a performance that introduced her to a wider audience and linked her to the high‑profile Marvel Cinematic Universe.

Following her work on Hawkeye, Stack continued to expand her résumé with a leading role as Rose in Disney’s The Naughty Nine (2023), showcasing her ability to carry a central character in a family‑oriented production. She most recently portrayed Lilly Bainbridge in the 2025 series IT: Welcome to Derry, further demonstrating her versatility across genre‑spanning projects. Born on October 19, 2010, in the United States, Stack is recognized as a rising young talent in film and television, with a growing list of credited performances that reflects her early start in theater and her ongoing development as an actress.