We all know comics are notorious for killing and bringing back characters like nobody's business. Let's see if we can count how man times this happened. I'd appreciate any elaboration anyone can offer on these, like actual issues, etc.
Prof X: One of the earliest examples, I'm pretty sure, is Prof. X being killed and brought back shortly afterwards in the early (pre-Giant Size) X-Men days.
Jean Grey: Probably the most high-profile case, killed at the end of the Dark Phoenix saga, brought back in the 90s.
Hawkeye: Was dead for like less than a year before Scarlet Witch brought him back.
Colossus: Killed in X-Men, resurrected in Joss Whedon's Astonishing X-Men run.
Kitty Pryde: "Killed" in Joss Whedon's Astonishing X-Men run, but with the severe hint that she may return. Not sure if that ever happened.
Human Torch: I remember he was killed some time ago, with Spider-Man having a talk with Franklin about how his uncle died too. I assume he eventually came back.
Jean Grey killed again in 2001 by Xorneto. Resurrected 15 years later by Xorneto.
Black Bolt killed himself while detonating a bomb, riping a whole in space, and later reappeared from the sky.
Vulcan was killed in the bomb detonation and reappeared the same exact way Black Bolt did.
Captain America died and returned.
Cyclops died and in less than a year, returned.
One of Multiple Man died, but they gave another one his own comic series like a month afterwards.
Triton died.
Maximus died.
Wolverine died a few years ago.
Psylocke died in Claremont's X-treme X-Men was resurrected by her brother Jamie.
All the New mutants died...killed and then resurrected by the Beyonder
Magik died from the Legacy Virus and was brought back via time-displacement and Limbo stepping disks.
The Scarlet Witch died and will be revived by the end of the event.
Ben Grimm died and was resurrected.
REed Richards and Doctor Doom thought dead, later found to be missing.