Hi,gl&hf spoilers ahead
Dean's dad is trading his life with the devil to save Dean.(Supernatural)
Eliots dad is just in his imagination (Mr.Robot)
This Anime is ♥♥♥♥♥♥♥♥ and Kirito saves Asuna from that weird kidnapper. (SAO)
Barry goes back in time to save his Mom in the end of season 2. Jay Garrick is Zoom; the real one is an old Flash from another universe. (Flash)
John Diggle s Brother is a traitor and because of him Laurel Lance dies.(Arrow)
Eliot s Father is just in his imagination the real one died years ago on cancer.(Mr. Robot)
Lelouch is just pretending to be bad to achieve world peace.(Code Geass)
Well that series is ♥♥♥♥ so no need for spoilers.(Elefenlied)
A Shinigami killed L and Light Yagami dies in the end.(Death Note)
The small ♥♥♥♥♥ girl is bad and wanted to defeat the god.(Mirai Nikki)
Everyone dies, literally everyone.(Akame ga Kill)
Ed gives up his alchemy power to get Al s body back.(Fullmetal Alchemist)
Gon gets really mad on that cat girl because she killed his friend. In Gon’s rage he grows to an adult and owns that cat girl after that he goes into a coma.(Hunter x Hunter)
Migo saves the protagonist and then goes away so he can’t use his power.(Parasyte)
Kaneki gets crazy af. The first season is good and the second season is weird af.(Tokyo Ghoul)
Elijah Price is a super-villainous mastermind known as Mr. Glass.(Unbreakable)
The Killer is Piper.(Scream)
Darth Vader is Luke's Father :) and Han Solo dies.(Star Wars)
Neo is the one.(Matrix)
Jon Snow real name is aegon targaryen, the Night King kills Viserion the dragon and turns him to a zombie dragon.(Game of Thrones)
The boy’s adult friend is also a ghost.(Sith Sense)
Dumbledore dies. (Harry Potter)
Ushio dies.(Clannad After Story)
"Adam" is Henry’s psychiatrist.(Forever)
Jordan gets arrested by the FBI and starts a new life.(Wolf of Wall Street)
The kid is in an another Dimension which is upside down and Eleven opened the Portal to the Dimension.(Stranger Things)
Annie is the Female Titan. Armin dies. The wall was built by Titans.(Attack on Titan)

Wow you ended up here huh. Either you saw everything I spoiled or you are a dumbass. ;)