Which House M.D. character was played by Olivia Wilde?

Olivia Wilde played Remy “Thirteen” Hadley in House M.D.

Thirteen joined House’s diagnostic team during the fourth season after an elimination-style selection process for new fellows. Her nickname came from the number she wore during that competition, and it remained her best-known name within the hospital.

The character was a physician with a specialization in internal medicine and a guarded personal life. Her storylines included Huntington’s disease, relationships with colleagues, and difficult ethical decisions connected to patient care. Wilde remained part of the main cast for several seasons and returned for the series finale.

Thirteen is sometimes confused with Allison Cameron, played by Jennifer Morrison, or Amber Volakis, played by Anne Dudek. Wilde’s character is also not the same as Martha Masters, the medical student played by Amber Tamblyn.