TV Series | TV-14 | | Comedy, Crime, Drama
After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.
Although she's a woman, Captain Victoria Gates is always referred to as "sir". This is not all that uncommon, especially in the military, and even some police precincts, where traditional decorum dictates that a superior officer always be addressed as "sir", regardless of gender, unless ordered to do so otherwise.
Richard Castle: Always.
Throughout the show Beckett goes on undercover operations from time to time. However, with all of the publicity associated with the Nikki Heat books that are based on her, it is more than likely her "cover" would be blown and would be useless in that role.