Valli O'Reilly is a make-up artist. She won at the 77th Academy Awards for her work on the film Lemony Snicket's A Series of Unfortunate Events in the category of Best Makeup. She shared her win with Bill Corso. In addition to her Oscar, she won a BAFTA award for the film Alice in Wonderland. Valli also worked on Ant-Man and the Wasp (2018) and Avengers: Endgame (2019) as a makeup artist for Michelle Pfeiffer.