Which character is House M.D.’s oncology department head?

James Wilson is the oncology department head in House M.D.

Wilson works at Princeton-Plainsboro Teaching Hospital and specializes in treating cancer. His medical role frequently intersects with the show’s diagnostic cases, but his most important narrative function is as House’s closest friend and trusted confidant.

The character’s calm, compassionate approach contrasts with House’s abrasive behavior. Wilson often challenges House’s decisions, yet he also understands House better than most colleagues and repeatedly remains involved in his personal and professional life.

Viewers sometimes confuse Wilson’s position with the title of department head held by other recurring doctors. James Wilson is specifically associated with oncology, while House leads diagnostic medicine and Lisa Cuddy serves as the hospital’s administrator for much of the series.