In House M.D., which doctor is nicknamed “Thirteen”?

Remy Hadley is the doctor nicknamed “Thirteen” in House M.D.

Hadley joins House’s diagnostic team during the fourth season after a competitive selection process. House calls her “Thirteen” because she is associated with the number 13 in the ranking and identification system used during the competition to choose new team members.

The character is played by Olivia Wilde. Her medical background and private life become increasingly important to the story, particularly after she reveals that she carries the gene for Huntington’s disease. She later develops symptoms and faces the difficult uncertainty of whether she will eventually inherit the condition.

“Thirteen” is a nickname rather than the character’s real name. Her full name is Remy Beauregard Hadley. Viewers sometimes confuse her with Cameron, another female member of House’s team, or with Martha Masters, who joins much later. Hadley’s number remains the show’s most familiar way of identifying her.