Logan

Code Name: Wolverine
Real Name: Logan (If that is his real name or a fake name is unknown.)
Powers: Healing ability, enhanced smell and hearing. Also has claws but those came from an operation
Old Resident: Somewhere in Canada
Little is known about this loner called Logan. He was operated on somewhere in Canada and that is how he got his claws. In an upcoming episode we will learn more about this and possibly his history.
Being one of the three adults at Xaviers Logan teaches the students about survival and their powers. Sometimes the students may become afraid of him, but he does teach them.
One thing we do know about his past is it involves Sabertooth. Both of them a grudge against the other and have battled it out in four episodes.