Attack on Titan’s 14th Commander of the Survey Corps, who took over when Erwin Smith died, Hange Zoe, is one of the series’ bravest characters. They were extremely interested in Titan behavior and biology, never too afraid to get up close and personal with the beasts to learn everything they possibly could about them in the hopes of stopping them from harming humanity further. Hange’s final sacrifice was heartbreaking, valiant, and saved so many lives.