About
Amelia "Milly" Shapiro (born July 16, 2002) is an American actress and singer. She starred in the 2018 horror film Hereditary and originated the role of Matilda Wormwood in the Broadway production of Matilda. She has also played Sally Brown in an Off-Broadway production of You're a Good Man, Charlie Brown. (Wikipedia)
Hereditary
Splitting Up Together
Hysteria!