Whoever is cast this role will animate the characters: humanoids, Kaiju (aka Giant Monsters), the Ultramen and the Ultrawomen, animals, and whatever other kinds of characters. Hypothetically, any method of animation will work, as long as it’s a method that is relatively quick to produce when compared to other methods.

By the way, a fair majority of the character designs are already done, so you’ll really just be animating them.