Lexa - The 100
Lexa's death was so sudden and unexpected. Just as her relationship with Clarke blossomed, she was hit by a stray bullet by the one person who had sworn to always protect her. She helped Clarke embrace her darker side, and they both simultaneously helped each other become lighter when they were together. Forgiving her sins in Season 2, it's a shame Lexa died before she could help Clarke save the world.
Ziva David - NCIS
We didn't actually see her death, so there's always hope, right? Her departure in Season 11 was sad; we spent so much tiem with her character, much more than with Kate, but never got to see her fully blossom. With Michael Weatherly now exited from NCIS, too, I guess our dreams of a Tony and Ziva relationship will die hard.
Elliott Stabler - Law & Order: SVU
How many years has it been since Chris Meloni abruptly exited the show? All of the Stabler/Benson fans have been a perpetual state of heartbreak, waiting for the possibility of closure between those two. Hopefully he'll make an appearance before the show runs its course, but the future looks bleak for now. Plus, seeing him yell at people was strangely satisfying.
Allison Argent - Teen Wolf
With Teen Wolf entering its final season, we're left remembering how things used to be as only three members of the main cast remain from the good ole days. We saw Crystal Reed as Allison Argent's ancestor last season, but Allison's last appearance was her death in Season 3. Can we get a proper goodbye between her and Scott, even if it's just a hallucination on his behalf?
Chanel #2 - Scream Queens
She was awful even for the brief time on the screen. Her murder scene was horrifying and ridiculous, but hilarious nonetheless. It'd be interesting to see the dynamic play out between her and the other Chanels and Hester. How did this girl ever fit into the group, especially after she pushed Chanel down the stairs?
Norma Bates - Bates Motel
While Norma will still technically be seen in Bates Motel Season 5, it won't be the same character as we've come to know. She'll now be inside Norman's head, and it's been promised that she'll be crazier than ever. But is this really the way we want this beloved character to stick around? As a figure of insanity?