REAL NAME: Sean Cassidy

POWERS: The ability to create powerful sonic vibrations with his voice, known as a 'sonic scream', which can shatter objects, enable him to fly, and induce unconsciousness in others, all depending on the intensity of the sound

Co head-master Sean dedicates all he is to teaching his young wards how to live with and employ their powers. Once a student of Professor X himself, he uses his advanced knowledge gleened from his days with Interpol, NYPD, and the X-Men to be a better instructor to Generation X.