What’s funny is his “hairstyle” was originally just hat-hair. The rest of his hair under his cowl got slicked back with sweat but the parts that were under the base of the “ears” of his cowl didn’t and stood up. It was a joke by Cockrum.
Little Nemo:
This brings to mind a little cartoon in which someone rings the doorbell of the X-Mansion and says, “I’m looking for Jean Grey.” Cyclops answers and says, “She’s dead at the moment, try back next week.”
Well, not the only genre. SF does have Stargate: SG-1, after all. 
Kind of like the cloned catthat had a coat color that didn’t match her donor. Same genotype, different phenotype.
Excuse me? While there may be differently-gendered versions of many major characters due to alternate universes and/or and/or very temporary manipulations and/or clones and/or blood relationships, I can’t recall any that actually had their own gender changed permanently(or even semi-permanently).
You are missing the point about THE INTERNET.
Google image search “sexy (insert male superhero here)” and you’ll get dozens if not hundreds of deviantart/etc images of that character/costume done up in a sexy female form. It’s a thing.
Also.. you’ll get pictures of the “sexy” halloween costumes of said heroes.
‘Rule 63’ may be better…filter out the results where they’re made sexier, but left male, people talking about how sexy the character is, or are just reams of pictures of Hugh Jackman (Sexy Wolverine), Robert Downy Jr (Sexy Iron Man), Chris Hemsworth (Sexy Thor), and Chris Pine (Sexy Captain America).
Also, I note, the original post made no mention of it being permanent, so things like Gal Gardner count, too.
And, yeah, Rule 63 changes the characters not at all, aside from making them into hot chicks.
Back before Liefeld left, Image had a whole line-wide crossover event where all the heroes got “chickified”. Extreme Babewatch.
All those poor, broken spines…
You are indeed correct, my bad. Seems strange, since Morrison was doing his Weapon Plus stuff around the same time, but maybe it was too close to get on the same page.
Ironically, since my post, he showed up apparently alive in Uncanny X-Force. Not even time for the body to get cold.
Jean Grey’s actually been dead for a pretty long time… not as long as Jason Todd (17 years) or Bucky (37 years; though he was retconned to have never died), but 8 years is still nothing to sniff at. Of course, everyone knows she’ll be back, possibly at the end of the currently-ongoing Avengers vs. X-Men storyline.
Has anyone ever stayed dead besides Uncle Ben? Even Gwen Stacy had clones…
I could tell you, but the editors would take it as a dare.
I don’t think Batman’s parents, Thomas and Martha Wayne, have ever been revived in mainstream continuity. Although there is a villain named Doctor Hurt who has claimed to Thomas Wayne at some points.
As much as it would amuse me to see the next Bat-editor revive the Waynes on the theory that they’re the only ones left still dead, there are a few others: I’m pretty sure Capt. George Stacy and Ned Leeds have stayed dead in Spider-Man. Adrian Chase stayed dead.
The more issues a series runs, the closer it gets to bringing back everybody. So Superman has seen Lori Lemaris turn up alive, let Kal meet his bio-parents through time displacement (though technically they’re still dead I guess), retconned out his adoptive parents’ death, and killed and brought back Lex Luthor, at least once apiece.
But I don’t really expect Kyle Rayner’s girlfriend Alex to come back, or Amanda Waller’s niece Flo, outside of a horror arc and then only “back wrong” and temporarily.
Granted Flo was a supporting character in Suicide Squad, a book with a really high body count, and so far I think only Rick Flag has come back of the Squad.[sup]1[/sup] Though I wouldn’t be surprised at seeing Lashina back (possibly sans memories of the Squad), and possibly the Javelin who died (not a regular member, and he died in a confusing crossover after all).
Ok, what’s up with the little girl on the cover?
Robotic suicide bomber, built to kill Wolverine. Physically tethered to the robot Wolverine built as bait for Wolverine.
The original Wolverine series sure had a lot of really, really weird villains.
Elsie Dee and Albert, wow, hadn’t thought about those two in ages.
Lashina was brought back, during Seven Soldiers. Doctor Light, who was killed in the same mission, was brought back (…twice), only to be killed again (for good, this time) in Final Crisis.
Then there’s Captain Boomerang, but he wasn’t killed on a squad mission. (It was during an attempt on the life of Jack Drake, the father of the then-current Robin. They both died. Boomer came back. Jack didn’t.)
Oh, of course! I completely forgot about, “The Death and Life and Death and Life and Death and Life of Doctor Light,” which was a big departure for that series. I wasn’t counting Boomerbutt, since he didn’t die in a Squad story.