Answer
In "Who Are You?", Taecyeon portrays a dedicated and skilled detective named Cha Gun-woo. Known for his strong sense of justice and determination to solve crimes, Detective Cha plays a crucial role in uncovering the truth behind a series of mysterious disappearances. With his keen investigative abilities and unwavering commitment, he becomes a pivotal figure in the pursuit of justice and unraveling the secrets hidden within the narrative.