User blog comment:Jkphantom9/OFFICIAL: Japanese Cast Announcement!/@comment-25555436-20150609194140/@comment-3257939-20150609203730

Include the fact that they're voicing children while in Red vs Blue all the characters are adult.

Like Live said, Pyrrha is a good example. Jen tries hard to sound younger and more caring but it simply doesn't suit her sometimes. Or Jaune and Felix. I swear Miles's voice acting is incredibly well when he makes the jokes instead of acting as if he was the joke.