Abyss

Abyss is the name of several Marvel characters, but only one of them has joined the Avengers – and that’s the female version of the character whose real name is indeed Abyss.

She’s an alien character who actually started as an enemy of the Avengers. Along with her brother Ex Nihilo, she came to Earth to evolve the planet at the expense of millions of lives, but was soon shown the error of her ways.

In 2013’s Avengers vol. 5 #17, Captain Universe ordered her to join the Avengers, having already told the aforementioned Manifold that the team needed to expand. She became a hero and her telepathic powers – which have proven to be powerful enough to manipulate the Hulk – are very useful to the team.