J.J. Hunsecker is a fictional character from the 1957 film "Sweet Smell of Success," directed by Alexander Mackendrick. He is portrayed as a powerful and ruthless newspaper columnist who wields significant influence over public opinion and the media landscape. Hunsecker is known for his sharp wit and manipulative tactics, often using his position to control the lives and careers of those around him. In the film, Hunsecker becomes embroiled in a conflict with a young press agent named Sidney Falco, who seeks to gain his favor. The story explores themes of ambition, corruption, and the dark side of fame, highlighting the lengths to which individuals will go to achieve success in the competitive world of journalism.