Julian Hilliard was 9 in Doctor Strange in the Multiverse of Madness when he played the character 'Billy Maximoff'.
That was over 2 years ago in 2022.
Today he is 12, and has starred in 8 movies in total, 1 of those since Doctor Strange in the Multiverse of Madness was released.
In Doctor Strange in the Multiverse of Madness, I think Julian Hilliard looks: