Guys guess what, so I look up the 3rd movie's storyline and look what it has
Sofia pernas or isbella Merced even Anna kendrick as amy rose
Aubrey plaza as rouge the bat
They do have a different actor for big the cat, I'm thinking the actor they pick for him or Kevin Chamberlin aka the guy who played bertram wrinkle from jessie
different actors for scratch and grounder
Also Ben Schwartz would be the same for metal sonic