American Horror Story: 10 Saddest Deaths

10. Winter Anderson

Played by the wonderful Billie Lourd in her debut role, Winter is the devout sister to Kai Andeson, Evan Peters' fanatical cult leader and main antagonist to the show's seventh season.

Viewers are first introduced to Winter when she takes a babysitting job for Ally and Ivy's son Oz. Though she initially seems like the perfect candidate (she even shares the couple's political views), her dark side is slowly revealed. Not only does she introduce the youngster to the Dark Web and give them front row seats to a real-life murder, but she also manipulates the couple to try to drive a wedge between them.

It's later revealed that Winter was in league with her brother and his cult the entire time. The siblings are shown to share an uncomfortably close bond throughout the series, with a pinky swear being a binding sign of their loyalty.

Unfortunately for Winter, though, Kai's derangement eventually sees him turn against her, falsely believing that she betrayed him.

This suspenseful encounter culminates in an intense sequence in which an enraged Kai strangles her. Peters and Lourd's dedicated performances are what make this death resonate so much. Winter did some terrible things, but she didn't deserve this.