These episodes might be too painful to watch twice. Spoiler and Kleenex alert.
Sansa Stark - Game of Thrones
Is she everyone's favorite character? Maybe not, but she's been there from the beginning, and her eventual fate is going to hit audiences like a sword to the gut. The eldest daughter of House Stark saw her fair share of ups and downs, but no one will be able to predict this season's shocking twist.
In a profound deviation from the course set for Sansa by the novels, this upcoming season will force Arya — and we the audience — to watch helplessly as her sister Sansa has her throat torn out by the very dire wolf she forced Arya to abandon after it attacked Joffrey in Season 1. Dramatic irony? Sure. But are we ready for it? Not even a little bit.
HBO / Via Game of Thrones
Barry Allen - The Flash
The Flash became CW's surprise hit, in no small part thanks to Grant Gustin's effortlessly likable performance as a lovable loser granted the ability to run at lightning speed. The show's joyful portrayal of super-heroics was a breath of fresh air — especially weighed against its grim-and-gritty counterpart Arrow — making it all the more brutal when Barry Allen gets impaled through the heart by one of Captain Cold's icicles in Season 3.
Fans will never forget his unrequited love interest, Iris, pulling up his mask and the last flicker of recognition vanishing from Barry's eyes as he manages to barely whisper one final word: "You."
Diyah Pera / Diyah Pera/The CW
Michael Scott - The Office Revisited
Just because you know it's coming doesn't make it any less painful. Over the course of 7 unforgettable seasons, Steve Carrell played Michael Scott as a character oblivious to life's risks — from roasting his own foot on a George Foreman Grill to threatening to leap off the Dunder Mifflin building when a team building exercise got way too real.
However, Carrell's return to the role that launched him will be bittersweet, as fans watch him electrocute himself into a coma in the upcoming TV movie The Office Revisited, and stay with him through the end as Pam pulls the plug in the backdoor pilot for The Office 2.0.
NBC / Via The Office
Grover - Sesame Street
Sesame Street has long served as a tool for parents to introduce difficult conversations to their children — from the Emmy-honored "Goodbye Mr. Hooper," to the divorce of Snuffleupagus' parents. However, never before will a death be so heartbreaking to a child as in the case of Grover, himself a child (or at least childlike character), who will be killed off later this season to teach kids a lesson that even their peers, or they themselves, must die — some much sooner than others.
Grover is slated to be replaced with a pink muppet named Xingjuan who loves using tablet computers, safely and in moderation.
Sesame Workshop / Via Sesame Street