Zeke Yeager (in Japanese: ジーク Jīku Yega), otherwise known as the Beast Titan (in Japanese: 獣の巨人 Kemono no Kyojin), is a major antagonist in Attack on Titan and Eren Yeager's half-brother. He has some connection to the people of Homeland and Reiner Braun refers to him as "Lead Warrior". He voiced by Takehito Koyasu