Eren Jaegar

Eren Jaeger (エレン・イェーガー Eren Yēgā) is a member of the Scout Regiment and the main protagonist of Attack on Titan. He is the only son of Grisha and Carla Jaeger, the adoptive brother of Mikasa Ackermann, the younger paternal half brother of Zeke Jaeger and the holder of the "Mysterious Titan" and the Founding Titan.