job back. Additional characters, introduced in season 2 Frank Lundy Keith Carradine Frank Lundy was a high-ranking and illustrious FBI Special Agent, serving as one of their manhunters and the Bureau's top agent. He becomes one of the main antagonists of Season 2 after being recruited by Cpt. Matthews to lead the task force devoted to hunting the Bay Harbor Butcher. Lundy was cool, calm, confident, and incredibly intelligent. He learned about the criminal mind, often finding the important case evidence the frustrated Miami PD normally overlooked. Lundy was legendary with police agencies due to him breaking impossible high-profile criminal cases (e.g. the real-life Green River Killer and the DC Sniper). On a personal level, he had a wife, who died due to cancer, and a daughter. He is fond of classical music. Lundy devotes 15 years of his career to hunting down the "Trinity Killer", tracking him and seeing him as the most elusive serial killer he has ever encountered, but cannot convince any of his colleagues that Trinity even exists. During the hunt for the Bay Harbor Butcher, Lundy became dangerously close to finding out Dexter is the Butcher he is seeking, and at the same time becomes involved in a relationship with Debra, helping her get over her left-over chaotic emotions from her time as the prisoner of the Ice Truck Killer. In the end, Dexter outmaneuvers and frames Doakes as the Butcher, causing Lundy to lead the entire police force in a full-scale manhunt to find Doakes. After Doakes is killed in a seemingly accidental explosion, the case is considered closed and Lundy moves on to find another serial killer in Oregon. Although Lundy retired from the FBI some time later, he continued his mission of hunting the Trinity Killer. After tracking him to Miami, Lundy, no longer possessing access to the full resources of the FBI, asked for Dexter's and later Debra's, help in pursuing the Trinity Killer. Eventually, Lundy began to close in on Trinity, going so far as to predict where and when the murders would occur, as well as identifying Arthur Mitchell (albeit unnamed) as a suspect. In the course of the investigation, Lundy and Debra rekindled their relationship, but shortly afterward, both Lundy and Debra were shot by an unseen gunman. Lundy bled out and died from his injuries. Dexter mourned Lundy's death, having seen him as a "worthy adversary" and