It's spring and you know what that means? It's TV death season! Well, it's the time of year when most shows are airing either their season or series finales -- which is always a prime time to kill off key characters and fan favorites. This plot device to cliffhang fans or tug at their heartstrings has been done to death (literally), which is why to pull off a real shocker you gotta go big. Here are the top TV finale character deaths ranked from the simply, "Oh, my God!" to "What the f--?" Also Read: 13 Famous Last-Ditch Efforts to Save (Almost) Canceled TV Series (Photos)

17. Dan Conner (John Goodman), "Roseanne": OK, Dan really shouldn't be on this list -- anymore. But because his death was such a big shock when it was revealed in the original series' finale, it makes the cut. Even though it was all shrugged off when the revival hit ABC earlier this year.  Also Read: Ratings: ‘Roseanne’ Loses First Primetime Viewers Battle Since Premiere

16. Teri Bauer (Leslie Hope), "24": Jack Bauer (Kiefer Sutherland) saves the day at the end of Season 2 of "24," because of course he does. However, it ends on a pretty dark note when his wife is shot by the mole Nina Myers, and he is left holding her lifeless body at the end of a very long day. Also Read: ’24’ Franchise Revived at Fox With Female-Led Series

15. Bill Henrickson (Bill Paxton), "Big Love": In a show that wasn't particularly violent, the twist of Bill dying after taking three shots to the chest in the series finale was a little extreme. But it allowed for his three wives to both care for him and feel liberated after his passing, an especially poetic ending for the HBO drama about polygamy.  Also Read: Bill Paxton’s 20 Best Roles, From ‘Aliens’ to ‘Titanic’ to ‘Big Love’ (Photos)

14. Marissa Cooper (Mischa Barton), "The O.C.": Rich girl Marissa was a hot mess by the time her life was cut short at the end of Season 3 of this Fox teen soap. However, in the season closer, she was just about to go live with her dad and turn her life around. So when she died in Ryan's (Ben McKenzie) arm's after a car crash, we started listening to "Forever Young" in tribute and haven't stopped since. Also Read: Mischa Barton Hit With Negligence Lawsuit Over U-Haul Truck Crash

13. Jen Lindley (Michelle Williams), "Dawson's Creek": Someone had to die in the series finale of this WB teen drama, because it was a WB teen drama. But it didn't have to be Jen did it?!? Yeah, moving into the future to reveal that Jen was a mother to a one-year-old and then killing her off due to a heart condition all in one episode was just a bit too much, even for those cynical at heart like Jen herself. Also Read: Sorry, ‘Dawson’s Creek’ Fans, You Probably Won’t Get a Reboot — But You Might Get a ‘Reinvention’

12. Myrcella Baratheon (Nell Tiger Free), "Game of Thrones": Doesn't it suck to watch your daughter die just moments after admitting to her you are really her father and not her uncle? Yes, it was tough to see Jaime Lannister (Nikolaj Coster-Waldau) watch blood emerge from the young princess' nose, before she collapsed suddenly after being fatally poisoned in the Season 5 finale. Also Read: ‘Game of Thrones’ Creators David Benioff and DB Weiss Sign on to New ‘Star Wars’ Film Series

11. Eddard Stark (Sean Bean), "Game of Thrones": Fans of the book saw Ned's death coming from a mile away, but viewers tuning in to the penultimate episode of the HBO fantasy series' first season may not have been prepared to see him beheaded. Actually, we don't think anyone was ready for that, books or no books. Yes, he actually died one episode before the finale, but the ambiguous way it was shot left people holding out hope for a week that there may have been a reprieve for poor Ned. But nope, in the season finale, we see his head on a pike -- confirming he was dead, and adding him to this list. Also Read: ‘Game of Thrones’ Star Maisie Williams Shuts Down Reports of Multiple Endings (Video)

10. Jax Teller (Charlie Hunnam), "Sons of Anarchy": Talk about a way to end a series. In the final episode of this FX drama, lead character Jax committed suicide by highway crash and we're still not over it. Also Read: ‘Sons of Anarchy’ Creator Kurt Sutter Signs Overall Deal With 20th Century Fox, Fox 21 and FX Productions

9. Agent Caitlin Todd (Sasha Alexander), "NCIS": Caitlin looked like she might be a goner during that shootout in the Season 2 finale. Luckily she survived it -- only to be killed by a single bullet to the forehead courtesy of a sniper about five seconds after the dust had settled. Also Read: Exiting ‘NCIS’ Star Pauley Perrette Is the Most-Liked Female Star on Primetime TV (Exclusive)

8. Charlie Pace (Dominic Monaghan), "Lost": NOT PENNY'S BOAT. End Season 3, and the life of our favorite member of Drive Shaft. Also Read: Dominic Monaghan on Making Sci Fi Thriller ‘Atomica’ in a Nuclear Silo (Video)

7. Rita Morgan (Julie Benz), "Dexter":  Rita's death was such a big secret for the Showtime series that multiple scripts were written in an attempt to keep it under wraps. And the shock was worth all the hullabaloo, as seeing Dexter come home to find her dead in the bathtub, with their little boy crying by his mother's lifeless body, is still the biggest 'gotcha' moment from the entire series. Also Read: ‘Billions’ Renewed for Season 4 at Showtime

6. Jon Snow (Kit Harrington), "Game of Thrones": If you haven't heard about Jon Snow's death (and subsequent resurrection) by now, then you truly know nothing. Though the phrase "dead is dead" was repeated by the creators many times after Jon was stabbed by the Night's Watch in the Season 5 finale, we held out hope over the hiatus he would somehow survive because of course he would. And yes, he was brought back to life by Melisandre (Carice van Houten) at the beginning of Season 6. But since he did die and it shook us for months, he makes the cut. Also Read: ‘Game of Thrones’ Is Going to Kill Off Just About Everyone ‘One by One,’ HBO Exec Teases

5. Jimmy Darmody (Michael Pitts), "Boardwalk Empire": Fans werene't ready for the Season 2 finale twist that saw Jimmy make an unsuccessful assassination attempt on his former mentor Enoch ”Nucky” Thompson (Steve Buscemi) -- and Nucky making a far more successful attempt on Jimmy's life. Also Read: Steve Buscemi Shares His (Unsuccessful) Auditions for ‘Lady Bird,’ ‘The Shape of Water,’ More (Video)

4. Matthew Crawley (Dan Stevens), "Downton Abbey": After years of 'will they or won't they?' nonsense, Matthew and Mary (Michelle Dockery) finally married and had a baby boy at the end of Season 3. And in the darkest of twists, Matthew died in a car accident in the episode's final moments while headed home to tell the family about the birth of his son. Also Read: ‘Downton Abbey’ Creator Julian Fellowes’ ‘The Gilded Age’ Finally Gets Series Order at NBC

3. Dr. Robert Ford (Anthony Hopkins), "Westworld": The co-creator of the show's titular theme park died at the hand of Dolores Abernathy (Evan Rachel Wood) in the final moments of Season 1. The host shooting him in the back of the head at a party was shocking enough -- but it gave fans even more of a jolt to know he planned the whole thing. Also Read: Giancarlo Esposito’s ‘Westworld’ Cameo Was Such a Big Secret He Couldn’t Even Tell Evan Rachel Wood

2. Lt. Colonel Henry Blake (McLean Stevenson), "M*A*S*H": When the CBS dramedy about the Korean war killed off Colonel Henry Blake, it was a particularly hard pill for fans to swallow because they weren't familiar with the concept of an on-screen death yet. Stevenson's exit by way of dying was one of the first in TV history. Also Read: David Ogden Stiers, ‘M*A*S*H*’ Star, Dies at 75

1. Glenn Rhee (Steven Yeun), "The Walking Dead": A picture is worth a thousand words. But we'll give you a few more here: Negan (Jeffrey Dean Morgan), Lucille, Season 7 cliffhanger -- tragic Season 8 opener. Also Read: 11 TV Cast Upheavals, From ‘House of Cards’ to ‘The Walking Dead’ (Photos)

Now we'll just have to wait and see who gets added to this tally at the end of the current TV season. Luckily, we know at the very least it can't be another "Game of Thrones" character, seeing as their last finale won't be until 2019. But just thinking of who won't be left standing by the end of that final episode is making our heads spin. Also Read: 14 Most Savage TV Character Deaths of 2017, From ‘Game of Thrones’ to ‘The Walking Dead’ (Photos)