Thanos

Thanos, also known as “the Mad Titan”, is a superpowered villain and main central antagonist in the Marvel Cinematic Universe seeking to destroy half of all sentient life in the universe.

Origin
Born on the planet Titan, Thanos had an unwavering love for his people on the planet. But as Titan grew overpopulated and low on resources, Thanos grew worried about his home. He offered a solution to fix the problem which was killing off half the population so that the other half would thrive. However, they rejected his idea calling him a “Madman” which then resulted in his banishment. Eventually what Thanos predicted many years ago came to pass as Titan’s civilization crumbled over time and his race became nearly fully extinct, which left Thanos as the sole survivor and the last remaining occupant of his people.

Superhuman Strength
First Appearance: Avengers: Infinity War (2018)

He can crush anyone and anything in his path. He proved this by brutally breaking Loki’s neck when he invaded the ship that the carrying the remained Asgardians who survived Thor: Ragnarök (2017).

Great swordfighter
First Appearance: Avengers: Endgame (2019)

He can wield a double-edged sword and use it to his advantage. He proved this by fighting off Thor, Captain America, and Iron Man all at once.

Biography/History
Many years later after the death of his planet, Thanos became a Mad Titan and started conquering other planets. He later amassed an army known as the "Children of Thanos" which consisted of Ebony Maw, Cull Obsidian, Corvus Glaive, Proxima Midnight, Gamora, and Nebula.

Thanos would pit Gamora and Nebula against each other but Gamora always won becoming Thanos' favorite child while he grew disappointed in Nebula which is why he replaced some of Nebula’s body parts with machinery. He later learned the existence of the Infinity Stones which he then made it his top priority to find them. He first tried to get the Space Stone by sending Loki and his Chitauri army to get it during the Battle of New York but are defeated by the Avengers.

Later in 2014, he enlisted the help of the Kree warmonger Ronan the Accuser to get the Power Stone from Morag before Peter Quill gets it which forces Thanos to send Gamora to fetch it who later betrays him. Then Ronan betrays Thanos by wanting to keep the Power Stone for himself and swears to kill Thanos. Ronan is then ultimately defeated by the Guardians of the Galaxy.

With these two failures and two of his daughters swearing to kill him, Thanos is forced to go to Nidavellr to force the dwarves to build the Infinity Gauntlet intending to get the Infinity Stones himself. Then in early 2018, after collecting all the infinity Stones, Thanos appears in The Battle of Wakanda and right before being killed by Thor, Thanos snaps his fingers erasing half of all life in the universe.

After this event He later heads to a planet called the Garden where he becomes a farmer and lives the rest of his life in peace until he is ambushed by the remaining avengers and is then decapitated by an enraged Thor after he tells them that he destroyed the stones due to the side effect they have inflicted on his body. Five years later, after Bruce Banner snaps his fingers with the new Infinity Gauntlet and brings back half of all life that vanished, however the 2014 Thanos brought back from time ambushes them. after a heated battle he and his army are later turned to dust after Tony Stark sacrifices himself by snapping his fingers with an Infinity Gauntlet Stark modified in his Ironman suit, ending Thanos for the last time.

Research

 * https://www.inverse.com/entertainment/avengers-endgame-thanos-backstory-deleted-jim-starlin-interview

Images
]
 * https://vignette.wikia.nocookie.net/great-characters/images/9/91/Avengers_infinity_war_thanos_png_by_metropolis_hero1125-dc5ro2y.png/revision/latest/top-crop/width/360/height/450?cb=20180607203851
 * https://i.stack.imgur.com/pNftG.jpg
 * https://thumbs.gfycat.com/GranularHilariousCaecilian-size_restricted.gif
 * https://thumbs.gfycat.com/MilkyBriskAnura-size_restricted.gif
 * [https://comicvine1.cbsistatic.com/uploads/original/11124/111246198/6708466-5523846899-DS9Rc.jpg https://comicvine1.cbsistatic.com/uploads/original/11124/111246198/6708466-5523846899-DS9Rc.jpg