14) Luke Cage
He might be about to form the Defenders on Netflix, but in the comic book world, Luke Cage AKA Power Man has graduated into a trusty Avengers member in recent years as he’s served on various versions of the team. In fact, Cage often takes leadership of the rosters he’s part of. For instance, he stepped up and took charge of the New Avengers after the assassination of Captain America and was a founding member of the renewed Mighty Avengers.
13) Ant-Man
There’ve been three heroes to take on the mantle of Ant-Man over the years, but the most significant has to be Hank Pym. With his size-reducing Pym Particle, Ant-Man was one of Marvel’s earliest heroes and most notably is one of the founding members of the Avengers.
Unfortunately, in later years his heroism has been overshadowed by the controversial storyline that saw him physically abuse his wife, Janet. This is probably why Pym’s successor, Scott Lang, is the active Ant-Man used in the Marvel Cinematic Universe.