Brooklyn Nine-Nine: Every Character Ranked Worst To Best

In a lot of ways, Rosa Diaz is Brooklyn Nine-Nine's most surprising character. Initially cold, dark and stoic, she's grown over the years to become one of the more compelling and emotionally charged figures in the series.

Played by Stephanie Beatriz, whose real-life voices throws fans of the show off to this day, Rosa is the precinct's resident dark horse. She takes her job very seriously, isn't afraid to get her hands dirty, and holds underneath her persona of sassy insults and controlled emotions an abundance of sweet and game-changing secrets.

Despite her tough exterior, Rosa is one of the show's most caring personalities, and though she can be standoffish and blunt, she's always around to help her friends out when they're in a jam.

Pair that with her deeply moving arc in which she comes out as bisexual - much to her parents' horror and confusion - and her nearly unrivalled need to succeed in a male-dominated field, and what you have with Rosa is a character for the ages.