YouTube animation creators often handle several parts of production themselves.
Writing, character design, animation, editing, thumbnails, sound effects, and publishing can already require significant work. Recording multiple characters adds another task.
Text-to-speech can simplify the voice stage.
You can create dialogue for animated stories, character series, parody scenes, gaming animations, fictional conversations, Shorts, or other video formats directly from your scripts.
For recurring characters, consistency matters.
If viewers repeatedly hear a particular type of voice associated with one character, they can gradually recognize that character from the sound alone.
Try to keep the writing style consistent as well. A character who normally speaks calmly should not suddenly use completely different language without a story reason.