10 More TV Sitcom Characters With Shockingly Dark Backstories

10. Rosa Diaz - Brooklyn Nine-Nine

Rosa Diaz! She's the bonafide badass who always wins the crown as the Ninety-Ninth Precinct's toughest cop. But was she born a tough nut, or did her traumatic childhood make her one? 

In her youth, Rosa attended a deeply religious school and acted as a model student until she dropped out to study ballet. Sadly, Rosa's time at the American Ballet Academy was so intense and high-pressure that she collapsed under the weight of expectation, snapping and becoming violent towards the other ballerinas. 

Assault wasn't her only crime, as she also started breaking into houses and committing a litany of felonies. This landed her a spot in Juvie and got her booted out of ballet school. On top of this, her parents kicked her out of the house and told her she'd have to fend for herself. 

Thankfully, while many would have fallen deeper into this den of despair, Rosa powered through and learned how to be strong. This eventually led her to become a detective and gave viewers the hardened yet caring character they grew to love.