Amelia Voght

Amelia C. Voght is a mutant whose current whereabouts and affiliation remain unknown.

Biography
Amelia was a nurse who cared for Charles Xavier after his legs were first injured. Stationed in Tibet, Amelia was glad to meet another American. Her positive and friendly attitude helped Xavier get over his resulting depression. At first, their relationship was professional, but they soon developed a romantic relationship. They left Tibet together and returned to the United States.

After returning the United States, Xavier continued with his plans to build Cerebro to locate mutants in order to provide them safety. However, Amelia found these plans and thought he was developing the machine to hunt them down and exterminate them. She revealed herself to be a mutant and attacked him, only to be stopped when he revealed his own mutant powers.

This link strengthened their relationship even more, but over time, they both developed different stances on human-mutant interactions. Xavier wanted co-existence with the humans, while Amelia thought it best for mutants to remain underground. When Xavier brought Scott Summers to his mansion for training, Amelia left him and told him that his plans for the X-Men would doom all mutants.

Powers
Trans-Substantiation: Amelia has the power to convert matter into vapor at will, including herself. She is capable of transforming herself or any person or object in her line-of-sight into this state. Loose mist is virtually insubstantial, so  Amelia can use this power to avoid injury. She can control the flow of the vapor through the air, allowing herself to fly, squeeze through tight passages, or move objects about.

Teleportation: Amelia's mists can also be transported through the astral plane, allowing her to employ her power for long-range teleportation. She is able to transport herself and anything else she sublimates across the surface of the globe in an instant. She can teleport with cargo or send objects to a new location in her mind. On certain occasions, Amelia has demonstrated the ability to summon distant people to herself in this manner, visualizing wherever the person is at the moment, seeing them converted into mist, and then bringing that mist into her presence to be reformed.