Dr. Robert Chase’s surname in House M.D. is Chase.
Robert Chase is one of the original members of House’s diagnostic team and is played by Jesse Spencer. He begins the series as a physician whose background and motivations differ from those of Foreman and Cameron, creating a three-way contrast within the original team.
Chase’s medical interests develop during the series, and he eventually becomes a senior physician at Princeton-Plainsboro. His professional relationship with House changes as he gains confidence and experience, moving from subordinate team member toward an independent doctor.
The character is sometimes confused with the actor’s later television roles, especially Jesse Spencer’s work on Chicago Fire. In House M.D., however, the canonical character name is Dr. Robert Chase.