10 Biggest Characters The MCU Hasn't Used Yet

10. Fin Fang Foom

With his comic debut dating back to 1961, the evil dragon, Fin Fang Foom, would make for an awesome addition to the MCU.

Whilst he isn't a mystical character as his design may lead you to believe, nor is he strictly a dragon, Fin Fang Foom has proven to be a worthy adversary over his time in the comics. The shape-shifting Makluan from Kakaranthara, also known as Maklu IV, has caused major headaches to heroes like Iron Man and the Hulk over the years, and has proven himself time and time again not to be taken lightly. The character also has had quite a few appearances in video games, with his most recent outing being in the 2021 title, Marvel's Guardians of the Galaxy, as a main boss for the player to face off against.

Still, with the alien having seen a considerable amount of use in the gaming world, there is no sign of Fin Fang Foom in the MCU. However, now that Marvel is evidently happy to delve deeper into the stranger side of the MCU, in projects such as Shang-Chi and the Legend of the Ten Rings, there is no reason to rule out seeing Fin Fang Foom appear on the big screen, potentially in a sequel to the 2021 Shang-Chi flick.