Bertholdt Hoover (ベルトルト・フーバー Berutoruto Fūbā?) was an Eldian who was part of Marley's Warrior Unit. He originated from the Liberio internment zone and possessed the ability to transform into the Colossal Titan Reiner Braun (ライナー・ブラウン Rainā Buraun?) is the Vice Captain (副長 Fukuchō?, also translated as "Deputy Chief" or "Vice Commander") of the Warrior Unit and the main protagonist of Attack on Titan from the Marleyan perspective. he inherited the power of the Armored Titan.