The 18 Most Disappointing TV Series Finales of All Time

Eight seasons of goodwill can be spent in forty minutes. Some of these endings were merely divisive; a couple are still being argued about a decade later.

1

Game of Thrones

HBO's fantasy epic ended in 2019 with a six-episode eighth season that many viewers felt rushed every arc it had spent eight years building.

2

Lost

ABC's island mystery closed in 2010 with a spiritual reunion that left most of its famous questions unanswered.

3

Dexter

Showtime's serial-killer drama ended its original run in 2013 with Dexter faking his death and reappearing as an Oregon lumberjack.

4

How I Met Your Mother

The CBS sitcom spent nine seasons on one love story and undid it in the last twenty minutes of the 2014 finale.

5

The Sopranos

David Chase cut to black mid-scene in 2007, and audiences still argue about whether that was a masterstroke or a cheat.

6

Seinfeld

The 1998 finale put the four leads on trial for being bad people, replaying old episodes as evidence.

7

Battlestar Galactica

The 2009 finale resolved a hard-science mystery with a turn toward divine intervention that split the fanbase.

8

St. Elsewhere

The 1988 medical drama revealed its six seasons had taken place inside a boy's snow globe.

9

Gilmore Girls

Creator Amy Sherman-Palladino left before the last season, and the 2007 ending never reached the four words she had planned.

10

Killing Eve

The 2022 finale of the BBC America thriller killed one of its two leads in the closing seconds.

11

Sherlock

The BBC hit's 2017 fourth series ended on a secret-sibling twist that turned a detective show into a different genre.

12

Two and a Half Men

The 2015 finale abandoned the story to drop a piano on a Charlie Sheen stand-in while the creator addressed the camera.

13

Roseanne

The 1997 ending revealed the previous season as fiction written by Roseanne, and that her husband had died a year earlier.

14

Pretty Little Liars

The 2017 finale unmasked its long-running villain as a previously unmentioned identical twin.

15

Ozark

Netflix's crime drama closed in 2022 by letting the Byrdes walk away, an ending many viewers read as a moral shrug.

16

True Blood

HBO's vampire series ended in 2014 with a time jump and a faceless new partner at Sookie's dinner table.

17

Heroes

NBC's superhero drama limped to a 2010 cancellation after a final season that never recovered the first one's momentum.

18

Quantum Leap

The 1993 finale told viewers in a plain title card that Sam Beckett never returned home.