Thanos (Marvel Cinematic Universe)

"I know what it's like to lose. To feel so desperately that you're right, yet to fail nonetheless. It's frightening, turns the legs to jelly. I ask you, to what end? Dread it. Run from it. Destiny arrives all the same. And now it's here. Or should I say, I am."

― Thanos

Thanos
Appearances
First Appearance	Comic: The Invincible Iron Man #55 (1973) Film: The Avengers (2012) (silent cameo)Avengers: Age of Ultron (2015) (first speaking cameo)Avengers: Infinity War (2018) (first real appearance)
Biographical information
Age	Immortal
Related to	Alars (father) Gamora (Adoptive daughter) Nebula (Adoptive daughter) The Black Order (Adoptive children)
AKA	The Dark Lord The Mad Titan The Great Titan Son of Alars Genocidal Maniac The Most Powerful Being in the Universe Grimace
Born	Titan
Physical description
Species	Titan
Gender	Male
Height	8'2
Weight	985 lbs
Eye color	Pale Blue
Voice actors
English	Damion Poitier (The Avengers) Josh Brolin (Guardians of the Galaxy onwards) Isaac C Singleton Jr (voice)
Alignment and character traits
Alignment	Bad
Affiliations	The Black Order
Loves/Likes	Power Balance Family Death
Hates/Dislikes	Lies Failure
Powers/abilities, equipment and weaknesses
Equipment	Infinity Gauntlet
Friends and Enemies
Enemies	The Avengers Guardians of the Galaxy

Thanos is the main antagonist of the Marvel Cinematic Universe, serving as the overarching antagonist of The Avengers and Guardians of the Galaxy and the main antagonist of Avengers: Infinity War and the only antagonist of Avengers: Endgame.

Roles

He is the overarching antagonist of The Avengers, one of the two overarching antagonists (alongside Ego) of Guardians of the Galaxy, the overarching antagonist of Avengers: Age of Ultron, a mentioned antagonist in Guardians of the Galaxy Vol. 2 and Marvel’s Agents of S.H.I.E.L.D, a unssen antagonist in Thor: Ragnarok, the main protagonist villain as well as the main antagonist of Avengers: Infinity War, a unseen antagonist in Ant-Man and the Wasp, the main antagonist of Avengers Endgame, a posthumous antagonist in Spider-Man: Far From Home and the posthumous overarching antagonist of WandaVision and The Falcon and the Winter Soldier.

Why He Rocks

1. Thanos is the best MCU villain to date.
2. He wants to fix a real and horrible problem in the universe. Thanos saw firsthand on his own planet what happens when civilization recklessly exceeds its own limits.
3. He saw it coming and was powerless to stop it, which is why he’s convinced he must help stop it from happening again. That should be the backstory of a hero, the kind who bravely stands against the evil forces who would rather let people die than do the right thing.
4. His motivations are clear, understandable, and theoretically noble. Most beings would rule the galaxy if they got all six Infinity Stones, but Thanos wants to use them to fix its woes, even in his own horribly misguided way. And as we saw when he sacrificed Gamora, he does feel pain, but he will shoulder the personal cost of doing the right thing because he’s not as important as everyone else.
5. He is also an exceptionally intimidating individual, easily striking fear into those who are his allies even if they hold considerable abilities and powers, with Ronan the Accuser showing visible signs of fear in his presence and Loki doing so at the mere mention of him, as well as being able to command the Chitauri army unchallenged.
6. He grew to genuinely care for and deeply love Gamora as his child. Thanos believed in her abilities above all else and favored her above all of the other adopted children.
7. His menacing, spine-chilling voice provided by the talented Josh Brolin, who plays another Marvel character, Cable.
8. He is wonderfully animated with a wide range of emotions from anger, joy and even sadness. From his first appearance in the movie to the end, the evil boss feels like a solid presence, unlike some of the more forgettable one-shot villains in other Marvel movies.
9. He's the first-ever villain to kill a live-action movie incarnation of Spider-Man, a feat that not even Spidey's arch-enemies Green Goblin and Venom could accomplish
10. As the movie ends, we get a glimpse of Thanos looking all pensive and pondering while staring at the sunset, likely thinking about Gamora. Even though he appears to be at peace now that his plan has worked, it's a hollow triumph as he's all alone without the daughter he loved.
11. He also doesn't waste time monologuing to the heroes, letting others do it for him or speaks to the point.
12. Even when the Hulk tries to smash Thanos, he refuses all help before finally pummeling the Hulk into submission - to the point we never see Hulk in the movie thereafter. Thanos then proceeds to take out the entirety of the MCU's heroes without even losing once, something you can't say for any of the other villains in the franchise.
13. He is also shown to have an honorable side. While perfectly willing to manipulate others, he seems to disapprove of lies, as he never taught Gamora how to lie and was clearly disappointed that she lied on the Soul Stone. 
14. His motivation as a villain in the MCU is an improvement over his motivation in the comics. He wiped half the universe out in the comics just to impress Death. By contrast, he wiped half the universe out in the MCU to prevent it from suffering overpopulation. 

Bad Qualities

1. He is extremely dangerous, bloodthirsty, sadistic and cruel, finding children that he can raise to be assassins and forcing them to watch as he murders their families.
2. His noble cause leads him to monstrous, indefensible acts. He invades planets who haven’t asked for help and murders its people, insisting he knows better than they do. He tears families and communities apart, leaving the “survivors” behind to live in a world of pain and loss.
3. His personality seemed to change in Avengers: Infinity War. He could be seen as a tyrannical sociopath in Guardians of the Galaxy, yet seemed like a anti-villain whose deeds were for a noble cause in Avengers: infinity War.
4. His present self getting anti-climatically killed towards the beginning of Endgame, and being replaced by his less interesting and boring past self which was controversial and annoyed a lot of fans.