Grisha Yeager is a fictional character from the popular manga and anime series, Attack on Titan. He is known for being the father of Eren Yeager, the series' main protagonist. Grisha is a former member of the Eldian Restorationists, a group that seeks to restore the Eldian people’s rights and freedom. Grisha possesses the power of the Attack Titan, which allows him to access the memories of his predecessors and future inheritors. His character plays a crucial role in the backstory of the series, revealing important information about the conflict between the Eldians and the Marleyans.