Loki, an Asgardian god who is Thor's adopted brother (played by Tom Hiddleston in the 2012 live-action movie).
the biggest one that is probable is thanos.
Loki
Thanos
Thanos
Ultron
Superman is from DC comics, movie rights owned by Warner Brothers. Avengers are all from Marvel comics, movie rights owned by Disney
Doomsday is a DC villain not a Marvel character.
Doomsday is a DC villain not a Marvel character.
Scarlet Witch has been portrayed as both a hero and a villain in different comic book storylines. She started off as a villain in the Marvel Universe, but has also been a member of the Avengers and fought on the side of the heroes. Her character has evolved over time, showcasing a complex moral journey.
The frost giant! Can't wait
Thanos played by Josh Brolin.
yes