Madeline Wuntch (Kyra Sedgwick) was one of Brooklyn Nine-Nine's best recurring villains, but the show killed her off in season 7. Since becoming the captain of the 99th precinct in Brooklyn 99 episode 1, Raymond Holt (Andre Braugher) is mostly level-headed and pragmatic, with his lack of apparent emotion being a running joke among his subordinates. That changed when his arch-nemesis Madeline Wuntch was introduced in Brooklyn 99 season 2. While Holt has remained stoic most of the time, he just couldn't help but be petty around his long-time rival.
Holt and Wuntch's hatred in Brooklyn 99 became the center of several episodes. The pair apparently started as good friends, but a string of misunderstandings drove them apart. It all started when Holt was up for a big promotion that would've fast-tracked his career; Wuntch was supposed to write him a positive letter of recommendation, but after she realized that he's gay and therefore unattracted to her, Holt was led to believe that she sabotaged him. From then on Holt operated under that assumption, kickstarting a long history of the pair trying to make each others' lives miserable. Despite all this, they — together with the 99th precinct — came together to take down John Kelly, giving hope that they could finally leave the past behind. However, Wuntch managed to pull off her biggest scheme yet, demoting Brooklyn 99's Captain Holt to a beat cop at the end of season 6.
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Wuntch died rather suddenly in Brooklyn 99 season 7, episode 7 titled «Ding Dong.» The 99th precinct was shaken by the news that she had passed on, with Holt initially suspicious that this could very well just be another one of her
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