Which House M.D. character is portrayed by Jesse Spencer?

Jesse Spencer portrayed Dr. Robert Chase in House M.D.

Chase is an Australian physician and one of the original members of House’s diagnostic team. He specializes in intensive care medicine and later develops surgical expertise. His wealthy family background and his father’s influence affect his early relationship with medicine and with House.

At first, Chase can appear more willing than his colleagues to follow authority, but the character becomes more independent as the series progresses. He learns House’s diagnostic methods while also developing his own professional judgment. His romantic and personal storylines connect him with several members of the hospital staff.

Spencer remained with the series for its full run, though Chase’s position changes over time. He eventually becomes a senior member of the diagnostic department and, after House’s departure, takes on greater responsibility. The character’s development is one of the show’s longest-running professional arcs.