Marvel is calling Avengers: Doomsday its biggest crossover since Endgame — and in superhero math, “biggest crossover” usually means “someone’s not making it to the after-party.” The twist? Marvel rarely kills the character fans expect. It kills the one whose story feels finished.

So instead of guessing by fame, here’s a reality check based on how finished each hero’s arc actually is, backed by Wikipedia’s official overview of the film, which confirms this is the first half of a two-part finale closing out the Multiverse Saga before Secret Wars.

Avengers: Doomsday- Death-Odds Cheat Sheet

Hero	Why They’re at Risk	Death Likelihood
Magneto (Ian McKellen)	Villain, revolutionary, ally — arc fully explored	Very High
Sam Wilson’s Cap	No super-serum, leading on courage alone	Very High
Cyclops (James Marsden)	MCU may reboot X-Men with younger cast	High
Thor (Chris Hemsworth)	Last Phase One Avenger standing	High
Bucky Barnes	Redemption arc already complete	High
Spider-Man	Holland’s hinted retirement, but story still expanding	Low (not zero)

Who’s Probably Safe

Yelena Belova, Shang-Chi, Reed Richards, and Scarlet Witch all have unfinished business — Marvel doesn’t usually torch an investment right when it starts paying off.

The Bottom Line

If Marvel wants Infinity War-level heartbreak, the smart money is on farewells for the legends — Magneto, Sam Wilson, Bucky, Thor, and Cyclops — clearing the runway for a new generation before Secret Wars. Want the full cast rundown and every confirmed Doctor Doom variant? TechnoSports has the complete Avengers: Doomsday cast breakdown worth bookmarking before release day.