Julian Hilliard portrayed Billy Maximoff in the WandaVision episodes On a Very Special Episode..., All-New Halloween Spooktacular!, Breaking the Fourth Wall, Previously On and The Series Finale.
He also portrayed an alternate Billy Maximoff in Doctor Strange in the Multiverse of Madness.
Archive footage of Julian Hilliard from the WandaVision episode The Series Finale was used in The Marvels.
