Floch Forster was a former recruit of the Survey Corps. He joined the regiment before the return to Shiganshina District, where he was assigned to Squad Klaus. Other than Hange Zoë and Squad Levi, he was the only survivor of the battle. After discovering the truth, Floch developed a hatred for humanity outside the Walls. He was one of the Yeagerists becoming de-facto leader for the faction, he also believed Eren was the only one who can save the "New Eldian Empire".
Floch appeared to be of medium height with short, tousled blond hair. During the return to Shiganshina mission, he wore the standard Survey Corps uniform and cloak. For casual clothes he wore a white button down shirt with dark pants.
Floch had confidence and conviction as a Yeagerist leader. As a Survey Corps recruit, however, Floch was, by his own admission, a coward. Part of Floch's cowardice seemed to stem from a belief that his death should not be "meaningless," as he expressed during the Battle of Shiganshina District. Despite this, Floch had proved himself to be capable of acting courageously. He was willing to participate in Erwin Smith's suicide charge against the Beast Titan, despite his fear, and was willing to stand up to his fellow soldiers when they suggested allowing Erwin to die in favor of saving the life of Armin Arlert, even going so far as to risk being attacked by Mikasa Ackerman to keep her from taking the Titan injection from Levi.
Appearance: Floch appeared to be of medium height with short, tousled blond hair. During the return to Shiganshina mission, he wore the standard Survey Corps uniform and cloak.
Personality: Floch had confidence and conviction as a Yeagerist leader. As a Survey Corps recruit, however, Floch was, by his own admission, a coward.
Floch Forster in the story: Floch was present in the early days of the 104th Training Corps where he shows annoyance at Eren Yeager and Jean Kirstein fighting with each other so early in the morning. During the feast before the expedition to Shiganshina District, Floch rhetorically asks Jean if 104th recruits and former Garrison members such as himself and his friends are that unreliable. When Jean asks why he and his friends joined the Survey Corps, Floch says the increased propaganda for the Survey Corps after the uprising is what drew them in.
Relationships: Eren Yeager - Floch used to consider Eren as an immature and stubborn person due to the latter's behavior at the Battle of Shiganshina. However, after seeing his willingness to do what needed to be done to secure Eldia's freedom, Floch began to change his views on Eren and regarded him as a savior and the one who should rule Eldia.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.