Byleth Eisner is the main character of Fire Emblem: Three Houses as well as the player avatar of the game. Byleth is a member of a band of mercenary led by their father Jeralt. After discovering a mysterious power hidden within, they are offered a post as a teacher at the Officer's Academy of the Garreg Mach Monastery. As such, they are the teacher of most of the playable characters in the game.
Personality and Appearance
Male Byleth's original voice actor was Chris Niosi. However, due to Niosi confirming abuse of several ex-girlfriends, as well as being accused of breaking the non-disclosure agreement, he was recast and replaced by Zach Aguilar.