While these characters may not be familiar to many Marvel fans, they have had a significant influence on the Marvel Universe.

Not every Marvel Comics character gets treated equally, as upsetting as it is to admit. There are plenty of heroes who are often pushed aside so that the more popular characters can hog the glory.

Even before the MCU, Marvel had numerous characters who gained popularity through cartoons or video games. With that in mind, this list was updated to include more of Marvel's most popular heroes.

The team-based mobile RPG, Marvel Mystic Mayhem, launched with a roster of around 30 Marvel characters. Some, like Scarlet Witch and the Hulk, are familiar fare even for casual fans.

Marvel heroes have a rich history in fighting games. Learn how Storm, Spider-Man and others evolved from Marvel vs Capcom to Marvel Tokon Fighting Souls ...

But numerous major stars of the Marvel Cinematic Universe, who fans assumed would be in the movie, were conspicuously left off the cast list. For one, Spider-Man actor Tom Holland was not mentioned.