Levi Ackerman

pretty cool guy he is the captain of the survey corps and he has a squad called the Levi squad he is pretty stern most powerful in the AOT universe but he can be nice sometimes (Backstory Levi was born to Kuchel Ackerman a prostitute who worked in the underground and was impregnated by one of her clients one day Kenny Levi's older brother cane to visit and found his mom dead and Levi sitting next to her bed)