What is the real name of Thirteen in House, M.D.?

Thirteen’s real name in House, M.D. is Remy Hadley. The nickname refers to her position in House’s team-selection process and becomes the name most characters use for her.

Olivia Wilde played Remy Hadley, who joins House’s diagnostic team during the fourth season. Thirteen is a physician with a guarded personality, strong diagnostic ability, and a complicated personal history. Her story is closely connected to Huntington’s disease because she inherits the condition’s risk from her mother.

The character’s number is not her legal name. It comes from the competition in which House evaluates applicants for his newly rebuilt team; Hadley is identified as applicant number thirteen. The nickname remains even after her identity is known.

Thirteen is often confused with other female doctors in the series, particularly Allison Cameron and Amber Volakis. Those are separate characters played by Jennifer Morrison and Anne Dudek. Hadley’s surname is also sometimes remembered incorrectly as “Hadley Thirteen,” but her canonical name is Remy Hadley.