Chris Niosi was the original voice actor of the male Byleth in the English version of the game. However, due to his admittance of abusing colleagues, family and partners, he was replaced by Zach Aguilar. This replacement was made in an update on September 10, 2019.
The character of Leonie Pinelli boasts the highest growths and base stats in the game, it is not known if this was intentional or due to a glitch but this trait has never been patched out of the game so it is assumed that this was intentional.
Out of all healers, Marianne is statistically the best both offensively and defensively, with the best faith spells in the game and even getting a good few offensive reason spells, because of this she is often used in LTC runs and speed runs.