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Nikki Heat

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"She's going to be really smart, very savvy, haunting good looks, really good at her job. And kind of slutty."
Castle, about his new character[src]

Nikki Heat is the lead character in Richard Castle's Nikki Heat book series.


A silhouette of Nikki Heat on the cover of Heat Wave.

Heat is "loosely" based on NYPD detective Kate Beckett, possessing a similar backstory, in that her decision to become a detective was motivated by the death of someone close to her – although Heat has a niece and siblings that Beckett lacks – and the first case she investigates is adapted from several real cases Castle helped Beckett solve. Heat is assisted by sometimes-lover journalist Jameson Rook, and colleagues, Detectives Raley and Ochoa.

Although Heat passes the Lieutenant's exam with flying colors in Heat Rises, she declines the promotion in order to remain a homicide detective. She is promoted to Captain of the 20th Precinct in Raging Heat after the death of precinct commander Captain Wallace Irons.

Beckett discovers Nikki Heat and tries to make Castle change the name in the episode "Hell Hath No Fury," despite Castle's pleas about the potential titles offered by such a name.

The first Nikki Heat novel, Heat Wave, was released in the Season 2 episode "When the Bough Breaks". This was such a commercial success that Castle was offered a three-book deal to continue writing the series, with sufficient financial incentive that he put aside an offer to write books dealing with "a certain British secret agent". Castle's agent at the time, Paula, observes of the book and Beckett, "That's one hell of a love letter you wrote her." It was mentioned in the Season 3 episode, "He's Dead, She's Dead" that Castle's second Nikki Heat novel, Naked Heat, would be published soon. In the Season 4 premiere, "Rise", Castle was at a book signing party for the third book, Heat Rises, suggesting that it was released during the 2 month time jump in that episode. They are then followed by Frozen Heat.

Nikki and Rook also made a cameo appearance in Richard Castle's Derrick Storm novel, Storm Front, where they interviewed Storm after he was detained by the NYPD for being in the room with a dead body.

Serial killer Scott Dunn became fixated on Nikki Heat/Kate Beckett after reading the book; FBI agent Jordan Shaw concluded that this fixation was caused because, like Dunn's habit of committing murder sprees to write about them, Heat/Beckett represented a detective who was both real and imaginary at the same time.

A movie was based on Nikki Heat's first book, Heat Wave. Nikki Heat was portrayed by Natalie Rhodes (played by Laura Prepon), but due to various issues (including Rhodes going to rehab), it was released straight to DVD.

Notes and TriviaEdit

  • Nikki's mother's name was Cynthia Trope Heat[1] and she was a piano tutor/intelligence asset for the CIA (Frozen Heat).
  • Nikki attended Northeastern University originally as a theater major, but switched to criminal justice after her mother's murder.
  • Nikki is a practitioner of Brazilian jiu-jitsu, and often spars with Don, her Navy SEAL combat trainer-with-benefits until his murder in Frozen Heat.
  • Nikki carries the NYPD-issue SIG-Sauer P226 DAO as her duty weapon (unlike Beckett, who uses the Glock 19).
  • Nikki lives at an apartment in the Gramercy Park neighborhood of Manhattan.

References Edit

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