Detective Michael Tritter is a recurring fictional character in the medical drama series House, portrayed by David Morse. He is the main antagonist of the third season, which ran between 2006 and 2007. Tritter is a police detective, who tries to get Dr. Gregory House (Hugh Laurie) to apologize for leaving him in an examination room with a thermometer in his rectum. After House refuses to apologize, Tritter researches House's background and discovers the doctor's Vicodin addiction.