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

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

Chase is an Australian physician who joins House’s original diagnostic team at Princeton-Plainsboro. His early characterization includes a pragmatic approach to medicine and a willingness to challenge or accommodate House depending on the case.

Chase’s role changes substantially across the series. He develops from a fellow into a more experienced physician and eventually becomes the leader of the diagnostic department after House’s departure. His relationships with colleagues, especially Allison Cameron, form an important part of his character arc.

Jesse Spencer is an Australian actor who was already known for the soap opera Neighbours before House M.D. He later starred as Matthew Casey in the Chicago Fire television series. Spencer remained associated with Chase throughout the entire House M.D. run.