Cassie Howard, who?

Sydney Sweeney is saying farewell to her Euphoria character's signature blonde locks—for now—as she films Ron Howard's new movie Eden.

On Nov. 27, the 26-year-old was almost unrecognizable as a brunette on the Australian set of the survival thriller. But despite the dramatic hair change, Sydney still looked euphoric as she shot scenes with costar Daniel Brühl and their new furry castmate, a donkey.