Morgan Lily Jane Gross (born April 11, 2000) is an American actress and fashion model. She started modeling internationally at the age of four years and appeared in more than 21 television commercials, and many photoshoots before her role in Henry Poole Is Here as Millie Stupek. Lily had supporting roles in He's Just Not That Into You, as Matthew Gray Gubler's daughter in The Ugly Life of a Beauti...