In House M.D., which character used the nickname “Thirteen”?

Remy Hadley was the House M.D. character known by the nickname “Thirteen.”

Olivia Wilde played Hadley, who joins House’s diagnostic team after the selection process depicted in season four. The nickname comes from the number she received during that competition, and the other doctors continue using it even after her identity becomes familiar to viewers.

Thirteen is a physician with Huntington’s disease, a hereditary neurological disorder. The series uses her diagnosis to examine questions about genetic risk, uncertainty, treatment choices, and how a doctor responds when she may eventually experience the same disease seen in patients.

“Thirteen” is a nickname, not the character’s surname. She is also sometimes confused with Amber Volakis, another woman who competed for a place on House’s team, but Amber is a separate character played by Anne Dudek.