Walking Dead (show): Glenn

Glenn and Maggie were the only thing worth rooting for at that point and losing one of them ruined the last thing interesting about the show.

My mom quit Game of Thrones because they killed the dog in the first episode

L's Death in DeathNote. Near was cool and all, but the entire story after L dies felt like an epilogue rather than a continuation of the plot.

Joel’s death in The Last of Us. It was a bad idea in the second game and it had the same effect on the show.

Ragnar in Vikings. None of his sons had the same charisma and the show just fell flat to me. I still try to finish the show from time time but I still haven't managed to.

Zoe Barnes (Kate Mara) in House of Cards. Until her death, I didn't realize she was the only reason I was watching the show.

Not a show, but a movie spin-off. When they killed Wash in Serenity. I knew I wasn't going to like it as much as the tv shows.

I put off watching the last season of DS9 for a while, after they killed off Jadzia Dax in a really forced way. The worst part was that there was another episode that season where she almost died and it would've been a much more personal and appropriate way for her to go, but instead she's randomly at the wrong place when the big bad shows up doing main plot stuff and that's it. It was incredibly disappointing. Apparently there was some drama with contract shenanigans behind the scenes, so they ended up having to write it in last minute.

I did eventually come back and watch the last season and I'm glad I did, but I legit almost dropped it.

Glen in the walking dead. I was already on the posts during the governor arch. But Glenn fucking broke me.

Sweets in bones. I hated him when he showed up. Then he won me over and then he's gone :(

L from Death Note.

Kinda got boring for the other half, although Near-Mellow was okay after a while.

When Mulder went away to wherever he went in later seasons of X-Files.

Woodhouse and then Malory in Archer. i actually really enjoyed the coma seasons, but they’re damn good proof that you can’t come back home after you jump the shark.

Alex death in the expanse. Rounded off the experience and end of the series but also marked the end for me.

Not one person in particular, but I gave up on 'The 100' after the space people decided to massacre the locals about two weeks after landing.

It seemed like the show was just one massacre after another at that point.

Shayla from Mr. Robot. I just lover her so much for some reason.

There were a lot of questionably sadistic choices made by the producers in Game of Thrones, but when the >!orphans!< were strung up burned to death I said to my parter 'ok that's last warning. The show isn't good enough to endure this crap'.

Then the red wedding happened next season and it was full of sadism - unsuspecting soldiers gruesomely and gleefully murdered by their comrades, >!foetus stabbed in the womb!<.

And that was the last Game of Thrones episode I watched. I don't have any desire to revisit it.

A fantastic production in every other sense, ruined by extreme sadism at every corner.

The only one for me was Matthew Crawley in Downton Abbey. I don't recall now exactly why, but reading the plot overview, I think it was because the aristocrat/commoner tension was what held my interest. The show was mostly a period soap opera with some social commentary elements. With his death, it felt like losing the drama and keeping the melodrama. (Although that plot line was mostly wrapped up by the end of the 3rd series, too.) I don't recall being angry, or deciding not to watch further, I just never got around to it.

Hildur (played by Silje Torp) in "Vikingane" ("Norsemen" in English).

Janice in Barry. I will probably go back to watching the series, but the finale kind of ruined the things.

Oh, and I almost quit Angel multiple times back when it was a new episode every week. The first one because the actor died, I understood and it was sad but not worth quitting. The next because Charisma got pregnant? (Even though I didn't know why Cordy was killed off then) Then the character of Fred, but at least she got a new character that I grew to really like. But hated how Wesley's death happened. Darla's death was pretty epic though. That show was so all over the place.