House’s oncologist friend Wilson is named James Wilson in House, M.D.
Dr. James Evan Wilson is Gregory House’s closest friend and a recurring source of emotional balance in the series. He heads the Department of Oncology at Princeton-Plainsboro and often helps House interpret the human consequences of his decisions.
Wilson is played by Robert Sean Leonard. His friendship with House is central to the show, and their relationship continues through professional conflicts, personal crises, and major changes in House’s life.
The character is often identified simply as Wilson, which can make his first name less familiar. John, Jonathan, and Joseph are plausible alternatives but are not the character’s canonical first name. His full name is James Evan Wilson.