Flegel Reeves is the successor and son of Dimo Reeves. After his father's death, he assisted the Survey Corps in their takedown of the Military Police Brigade and then overtook the position of CEO of the Reeves Company.
Flegel is a short young man who possesses a fairly chubby build. He has light, short hair, freckles on his cheeks, and is usually seen wearing a regular black coat with a white shirt, as well as a pair of black pants.
Flegel seems to be a very proud person. He tells what he thinks and he does not shut his mouth for anyone. He has proven himself to be very rude in conversation, speaking disrespectfully to Levi, and casually joking that the man should be serving him tea to show his hospitality. He also came off as rather cowardly, criticizing Levi's treatment of Historia behind the man's back, rather than confronting him face to face. After his father's death at the hands of the Military Police, Flegel was so terrified that he was willing to resign himself to living in hiding in order to stay outside of the Military Police's reach, and was only convinced to take action by Hange Zoë.
Appearance: Flegel is a short young man who possesses a fairly chubby build. He has light, short hair, freckles on his cheeks, and is usually seen wearing a regular black coat with a white shirt, as well as a pair of black pants.
Personality: Flegel seems to be a very proud person. He tells what he thinks and he does not shut his mouth for anyone.
Flegel Reeves in the story: Flegel is first shown sitting with his father, grouped with the Special Operations Squad. As a member of the Reeves Company, Flegel is welcomed by Levi. In reply, he rudely says that Levi should be giving out tea if he really wanted to make a proper welcome, much to the shock of the others.
Trivia: "Flegel" is the German word for "flail", its second meaning describes a rude, ill-mannered and inconsiderate (usually male) person.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.