3. The Thing
Ben Grimm is an ordinary New Yorker who was turned into a super strong rock monster through exposure to cosmic radiation. Despite his brutish exterior, The Thing is still very much Ben Grimm, complete with his personality and intellect. Tragically, and frustratingly, Grimm is permanently stuck in his monstrous form. The Thing is commonly associated with the Fantastic Four, but he has also been part of other teams. He has been a member of the West Coast Avengers and the New Avengers. The Thing also has an ongoing rivalry with the Hulk, which would be spectacular played out on the big screen.
Why does he need a miracle? The film rights to the Fantastic Four are currently owned by Fox. In order for the Thing to appear in the MCU, Fox and Marvel would need to make a deal, which seems rather unlikely. In addition, Fox are planning a Fantastic Four reboot film to be released in March 2015. If the reboot is successful, and the new version of The Thing is well-received, he stands a better chance of inclusion in the MCU.