Kenny Ackerman is a major supporting character in Shingeki no Kyojin (Attack on Titan). He is a ruthless and highly skilled assassin, known as the 'Kenny the Ripper,' and serves as a key figure in the Interior Police. Kenny is also Levi Ackerman's uncle and played an important role in Levi's past, shaping his survival and combat abilities. His actions are closely tied to the royal government conspiracy and the secrets surrounding the Ackerman family.