In this picture here you have: Cyclops, Storm, Emma Frost, Colossus, Surge, Sunspot, Nightcrawler, Iceman, Psylocke, Rockslide, Angel, Wolverine, Beast, Cloak (well, he's there, anyway), and Dagger.
In addition to them, Utopia includes: Professor X, Illyana Rasputin, Dani Moonstar, Cannonball, Karma, Hellion, Domino, X-23, Warpath, Wolfsbane, Pixie, Mercury, Armour, Gentle, the Stepford Cuckoos, Dr. Nemesis, Madison Jeffries, Dust, Rogue, Anole...hmm, probably missing a few.
Then there's the X-characters who don't at present live on Utopia (such as Jean Grey, the three currently running the Starjammers, or the cast of X-Factor).
Of course, this cast is divided among a number of different books in terms of screentime (it includes, for example, the full casts of New Mutants and X-Force, which are both subgroups of the larger X-team), and most just function as background characters in Uncanny.