Stepford Cuckoos

The Stepford Cuckoos are all clones of Emma Frost, with her powers. They're the quintessential 'mean girl' clique ... so exclusive that they only need to be in a clique of themselves.

Background
The Stepford Cuckoos are actually Weapon XIV, a mutant project engineered by the Weapon Plus program from the DNA of Emma Frost, one of the world's most powerful telepaths. Though the Cuckoos have full memories of their teenage lives, most of it is a sham: they were grown in vats and sent out into the world with a deep paper trail that assures the planet that they really, truly exist.

The Cuckoos are the product of Weapon Plus's association with Sebastian Shaw of the Hellfire Club, who wanted to consolidate his power within the Inner Circle while also solidifying business connections to Weapon Plus. The Cuckoos have thus been maneuvered into the position of the Inner Circle's White Knights.

As far as the details of the Cuckoos' fake "lives," they are fuzzy at best. They're emancipated from their parents, living alone (or "alone" as quintuplets can be) in New York, and through very expensive private tutoring are already educationally ahead of the curve. Press them for details, though, and things start to get fuzzy and evasive.

Their true purpose remains unclear except to those pulling their strings.

Personality
The Stepford Cuckoos are the Five-in-One: Five separate quintuplets, each with full personalities and minds unto themselves, who lock together in a telepathic matrix that boosts their power and causes them to act as sections of a whole.

As a whole, they're a roving gang of exquisitely-dressed Mean Girls, who take the snobbery of high school cliquism to new heights because they don't even need to find anyone else to clique with. They act as a totally self-sufficient system, and while they're not social ogres, they have a tendency towards aloofness and condescension. They hold themselves to exacting standards... but they hold everyone else to the same standards, and see things like 'not caring about fashion' (or similar personal choices) as failures to live up to one's potential.

Within the group, Esme is the catty and duplicitious one, the Meanest of the Mean Girls. Sophie is the dominant one, assertive and given to flights of heroism. Celeste is the insecure tattletale, but also the most compassionate. Irma, nicknamed "Mindee," is the one who most often wants to individualize herself, often through establishing friendships and relationships outside of the Five-in-One. Finally, there is Phoebe, who is envious and loves the thrill of power and control.