Animation often requires multiple character voices. Text-to-speech can make early production easier because creators can test conversations before completing the visual scene. Keep each character’s dialogue separate. This lets you replace individual lines when the story changes and makes synchronization with animation much easier.
More importantly, avoid building Native characters entirely from stereotypes. A Native character can be a developer, teacher, student, gamer, scientist, artist, business owner, parent, traveller, historical figure, or almost any other type of person depending on your story.
Give the character interests, motivations, strengths, flaws, and relationships beyond their cultural background. A well-written character feels like a person rather than a collection of clichés.