In House M.D., Dr. Chase's first name is Robert.
Robert Chase is an Australian intensivist and surgeon who becomes one of the longest-serving members of House's diagnostic teams. Jesse Spencer played the character throughout the series. Chase's medical background and adaptable personality make him valuable in cases requiring intensive care, surgery, or practical procedural knowledge.
Chase is one of the three original fellows introduced alongside Eric Foreman and Allison Cameron. His surname can create confusion because the show often calls him simply Chase, while his full name appears in character references and credits. His first name is Robert, not Jesse, which is the actor's name.
Over time, Chase develops from a junior doctor working under House into a more independent physician. His career progression is part of the show's broader interest in mentorship, professional identity, and the ways House's methods affect younger doctors.