Thanos' parents, the Eternals A'lars (Mentor) and Sui-San, were killed by Thanos himself in the comic book continuity.
MCU Thanos probably did it to show his commitment and show the people of the planet that he was willing to sacrifice his own family and not just ask everyone else to risk giving up theirs.
Myung-gi starts a bathroom riot because Thanos said he would go after Jun-hee, which at first doesn't seem to be a good idea. Myung-gi has the last laugh, stabbing Thanos with a metal fork in self-defense. Thanos doesn't have the grace of dying during the games or as part of Gi-hun's rebellion.
The fierce warrior Nebula is the adopted daughter of Thanos and the “sister” of Gamora.
Mentor and Sui-San were soon discovered by Thanos and subsequently tortured and killed repeatedly by their son.
Is Red Skull the son of Captain America? No way he is the son of Captain America in the MCU. But…. An alternate iteration has since been seen as the Ultimate Marvel equivalent of Red Skull, the secret son of Captain America (Steve Rogers) and Gail Richards.
In the Ultimate comics, Laura Barton, along with her three children, was murdered by a black ops team that was led by Black Widow. In the comics, codename Agent 19 was the S.H.I.E.L.D. designation of Bobbi Morse/Mockingbird, who was Clint Barton's one-time wife.
NoobMaster69 in Avengers: Endgame is the same character, Aaron, from Captain America: The Winter Soldier, an Apple Store employee who played Fortnite with Thor and Korg, revealed in a later Xbox tie-in commercial where his cousin (who created the name) appears, tying him back to the MCU's gamer tag in Endgame.
Gi-hun's mom She died all alone at home probably thinking her son prefered to be out gambling in horses races than to be taking care of her. Ali's death was heartbreaking.
Disbelieving, Gamora could not comprehend that Thanos ever showed genuine love for her. However, upon realizing it was true, Gamora quickly took her switchblade from Thanos' belt.
Why does Gi-hun (Player 456) choose to die? Squid Game's creator did not initially plan for Gi-hun to perish. But as Hwang strategized Seasons 2 and 3, he realized he needed a resolution that would bring “both the game and Gi-hun's journey” to a fitting and resounding close.
The Mark 42 (or XLII) Iron Man armor is special because it's an autonomous, modular suit that can assemble itself around Tony Stark, controlled by microchips in his arms, allowing remote operation and deployment in separate pieces, making it his first "summonable" armor but also prone to malfunctions as a prototype. It's famous for its unique gold-and-red design and the ability to fly in segments to surround Tony, even letting others wear parts of it, though it was still experimental.
J.A.R.V.I.S. was replaced by F.R.I.D.A.Y. in the MCU because J.A.R.V.I.S. evolved into the sentient being Vision at the end of Avengers: Age of Ultron, leaving Tony Stark needing a new primary AI for his suit, with F.R.I.D.A.Y. serving as the next step in his AI development, not just a temporary fix.
Laura was apparently the clone and later the adoptive daughter of Wolverine, created to be the perfect killing machine. For years, she proved herself a capable assassin working for an organization called the Facility. A series of tragedies eventually led her to Wolverine and the X-Men.
As the first major, openly gay character created by Marvel Comics, Northstar generated significant publicity in the mainstream press, and Alpha Flight #106 sold out in a week, although the series was not a very popular title. It is the only comic book issue to have been inducted into the Gaylactic Hall of Fame.
Issue #6 (Dec. 1993) confirmed the character to be Nathan Christopher Summers, the son of Cyclops (Scott Summers) and Madelyne Pryor (Jean Grey's clone) who had been taken to the future in X-Factor #68 (July 1991), introduced by writer Chris Claremont, and appeared in Uncanny X-Men #201 (Jan. 1986).
He knew Tony for a long time. They also fought in a lot of battles together. They were like brothers. On top of that he had all the previous things happened which probably made him even more sad when Tony died.
He had a rather bad case of "uncompleted super soldier serum injection" that made him break out turning his face red. That nasty buisness also made the cartilage in his face dissolve, drawing us his skin, and removing his nose. As for how he is alive, well, thats just mean.
Only a few select people can withstand his seemingly endless talking, resulting in his mouth being sewn shut in the final act of X-Men Origins: Wolverine. Ajax also threatens to sew Wade's mouth shut in Deadpool when Wade is undergoing (unconventional) cancer treatment because of his nonstop talking.
Sonic manipulator Shriek is commonly known as Spider-Man's foe, and as the sometimes-partner of Carnage. Born Frances Louise Barrison, it's believed that an unstable upbringing causes her frequent bouts of insanity. When paired with Cletus Kasady, her thirst for chaos is insatiable.
During a confrontation in a cathedral between the Venom and Carnage symbiotes, Mulligan was apparently killed by Barrison. However, he absorbs a piece of Carnage, which later revives him and causes his eyes to glow blue.