Will Graham is a fictional character created by author Thomas Harris. He is a former criminal profiler for the FBI and is known for his unique ability to empathize with serial killers, which helps him understand their motives. Will is the protagonist in the novels "Red Dragon" and "Hannibal," where he faces moral dilemmas and psychological challenges. In the Hannibal television series, Will is portrayed by actor Hugh Dancy. The show explores his complex relationship with Dr. Hannibal Lecter, a brilliant psychiatrist and cannibalistic serial killer. Will's character is marked by his struggle with his own dark tendencies while trying to catch dangerous criminals.