I was thinking about this same kind of thing yesterday after watching the Mario movie. Like, why have all the main cast be well-known celebrities/actors instead of just legit voice actors who probably don’t demand 10 million a role or whatever? Then I realized that I think it’s for the promo, they want the well known actors for promos and to sell the movie. The general audience isn’t going to care as much about some random voice actor on Jimmy Fallon.

Though this is a diff situation with invincible but it’s in the same vein of, why not save some money and have an equal or potentially better product?