In 2006, Morse received a phone call from David Shore, having previously worked with him on the "Hack" series, who asked him if he would be interested in having a guest role on "House". When Morse watched the show, he could not understand why people watched the show, because he believed that "this House guy is a total jerk". When he told some of his friends about the offer, however, their excited reactions convinced him to accept the role. Morse portrayed Michael Tritter, a detective with a vendetta against Dr. House. He earned his first Emmy Award nomination for his work on the series.