6. Hyperion
There are a number of characters in Marvel comics, spreading across different universes, who have the name Hyperion. But, for this particular entry, we'll be focusing on the most recent version - Marcus Milton, who would probably be the easiest one to integrate in to the MCU thanks to his less complicated back-story. He only appeared for the first time in December of 2012 and Marvel writer and artist, Jonathan Hickman, described him as follows:
"This is yet another parallel universe Hyperion. This is not King Hyperion, or Supreme Power Hyperion, this is not Gruenwald's Hyperion. This is Hyperion without all that baggage. This is Hyperion with a fresh slate, for a very specific purpose. He comes out of what the big story is behind the whole Avengers three-year plan that I have. He's very important, very pivotal, and I think people are really going to dig where we go with that. He's not going to be our poor analogue for Superman."
This is the Hyperion that the MCU needs and he could seamlessly be added to the Avengers roster. Milton arrived on an alternate Marvel Earth as a baby sent as the only survivor of a race of Eternals from a dying world. He was found and raised by a man who named him Marcus Milton and taught him how to live on Earth. Growing up, he discovered that he possessed superhuman strength, speed, stamina and durability, a number of extrasensory and vision-based powers, freeze breath, a regenerative healing factor and the ability to fly and so, as an adult, he became the superhero named Hyperion and protected the world alongside the Squadron Supreme. When his reality collided with another reality, Hyperion was the only survivor where he floated around in a void until a group of A.I.M scientists pulled him into the Earth-616 reality. Hyperion was in the captivity of A.I.M (who already exist in the MCU) until he was freed by the Avengers and offered a place amongst them. He would be a ready made hero who could immediately add something to the MCU Avengers and would be a great addition to the live action Marvel universe.