Fanon: Marvel Cinematic Universe

General Fanon

  • The Avengers has this site, Avengers Headcanons, that's dedicated to this trope.
    • Connected to the above, popular theories arise concerning Hawkeye's backstory, many inspired by the mainstream comics. The most common are Clint was a Circus Brat and/or has a criminal record (which again, is basically his comics backstory), formerly served in the US Army or in some kind of Law Enforcement division, is a single father with a young child, is dating/married or was formerly dating/married to Bobbi Morse, that Bobbi is the mother of the aforementioned child, and many more.
  • The Bourne Legacy is Hawkeye's origin story.
  • Captain America: The First Avenger, having changed Bucky Barnes from Cap's boy sidekick to his childhood friend of the same approximate age left a huge window of opportunity for fans to fill in the gaps of Movie!Bucky's pre-war history. Popular backstories include Bucky and Steve growing up in the same orphanage, Bucky working at the docks before he was drafted, and going to dance halls with pretty dames being one of his hobbies.
  • Thanos' chair in Guardians of the Galaxy is his Companion Cube.


  • Iron Man:
  • Thor
    • This drink.....I like it! (throws cup of coffee to the ground) ANOTHER!
    • Father of the year.Explanation 
  • The Avengers:
    • "Big man in a suit of armor. Take that away and what are you?" Explanation: 
    • "Hulk? Smash."Explanation 
    • "Kids, it was the summer of 2012 when your Aunt Robin joined the Avengers." (Or a variation thereof.)Explanation 
    • "Puny god."Explanation 
    • "Kneel, bitches!"Explanation 
    • Spider-Man being excluded from the team (due to film rights issues) has become a meme among the comic book fandom, to the point where Peter joining the team is a small fanfic genre. Usually ends with Peter being a Science Buddy/Bro, an adopted kid by Bruce and Tony, or The Woobie being pushed to the limit.
  • Captain America: The Winter Soldier
    • "Hail Hydra!" Often captioned with photos of people whispering to each other.
    • ᕕ( ᐛ )ᕗ "On your left!"
    • Captain America 3 will be titled "Captain America: Up All Night to Get Bucky"
  • Guardians of the Galaxy
    • "I am Groot." Explanation 
    • In-universe, Korath (and most other peoples') reaction to hearing the name "Star-Lord" is: "Who?" This has spread to the fandom as well.
  • Daredevil
    • Best damn avacados
    • Apparently, Matt's a dumpster trash baby.

Fan Nickname

  • Loki-chucks: The Curb-Stomp Battle between Hulk and Loki during which Loki is whipped around like a rag in a dog's jaws.
  • Science Bros: The Odd Friendship between Tony and Bruce.

Common Fanfic Tropes and Occurrences

  • Loki redemption fics. Usually forced as his punishment for the events of The Avengers. May or may not work.
  • Movie Night — The Avengers are likely to have one of these in whatever fanfic you read.
  • All of the Avengers will be living together in Stark Tower, either full-time or just whenever they need a place to crash. Bruce and Steve, by virtue of having no other friends, are almost always full-timers.
    • In a sub-universe of this: Tony is a new teacher at a school/buys a bakery and gets the other team members in. Commonly results in Loki as a Sixth Ranger and/or cameos from Darcy and Peter.
  • Writing about what the heck happened in Budapest.
  • Following the release of Captain America: The Winter Soldier, there has been an influx of Reunion/Fix-It Fics for Steve and Bucky.