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 ' (2019) as a makeup artist for Michelle Pfeiffer.