Amy Santiago is a fictional character who appears in police procedural comedy television series Brooklyn Nine-Nine (2013–2021).

Portrayed by Melissa Fumero, she works as a detective at the New York Police Department in Brooklyn's fictional 99th precinct from the beginning of the show until its fifth season, when she is promoted to sergeant.

Amy Santiago is established as a competitive and goal-oriented character at the start of Brooklyn Nine-Nine;[1] according to Nylon, she initially fit the trope of the overachieving goody two shoes.

She is defined by traits that are not frequently combined in female characters—for example, seeks perfection but can not stop smoking; she loves rules but is not afraid to disobey them when they are unfair; and she has a crossword puzzle obsession despite working in a risky, physically demanding job.

However, unlike the more tough and abrasive Diaz, Santiago tends to be more good-natured, even going as far as to try to prepare a Thanksgiving meal for her workplace colleagues and push for Christmas photos of them smiling.

Amy initially works as a detective at the New York Police Department (NYPD) in Brooklyn's fictional 99th precinct.

[19] By the show's third season, Fumero said she found comic acting much easier, having become more familiar with Amy's character; she added that she had "fallen into a real groove and rhythm" with the manner she approached scenes.