Amy Santiago is a fictional character from the television series Brooklyn Nine-Nine. She is portrayed by actress Melissa Fumero and is known for her ambitious and competitive nature. As a detective in the NYPD, Amy is dedicated to her work and often strives to prove herself in a male-dominated environment. Amy is characterized by her love for organization and planning, often using her skills to solve cases efficiently. She has a close friendship with her colleagues, particularly Jake Peralta, with whom she shares a romantic relationship. Throughout the series, Amy's character develops, showcasing her growth both personally and professionally.