What nickname does Dr. Remy Hadley use in House M.D.?

Dr. Remy Hadley’s nickname in House M.D. is Thirteen.

Remy Hadley receives the nickname after competing for a place on House’s diagnostic team. She is identified publicly by the number rather than her surname for much of her early time on the show, making “Thirteen” one of the series’ most recognizable character names.

The character was played by Olivia Wilde. Her medical background is internal medicine, and her storylines include professional uncertainty, romantic relationships, and the inherited risk of Huntington’s disease. The disease becomes a major part of her character arc and helps explain her guarded approach to personal disclosure.

A common mistake is assuming Thirteen is simply the thirteenth doctor hired by House. The nickname comes from the numbered competition and selection process used to choose members of House’s new team, not from a formal medical rank.