In House M.D., the doctor who becomes House’s first team leader after Foreman is Robert Chase.
Chase is an Australian intensive-care specialist who joins House’s original diagnostic team. After changes in the department’s staffing and leadership, he takes a more senior position within the diagnostic service. His career develops from a relatively junior team member into an accomplished physician who can lead cases and make difficult independent decisions.
Jesse Spencer portrays Robert Chase. The character’s background, ambition, and evolving confidence distinguish him from Allison Cameron and Eric Foreman, the other original members of House’s team. Chase also becomes involved in major personal and professional storylines as the series progresses.
The wording refers to Chase’s surname because the show generally calls him Chase. Foreman is the doctor associated with the earlier leadership transition, while Taub and Kutner are later additions to House’s team. Those distinctions help prevent confusing the team’s different eras.