Kitty is Katherine Pryde.
|Kitty Pryde - Kitty is a genius with the mutant ability to "phase" through things, such as walls. She was invited by Xavier to join his first X-Men team.|
There are multiple individuals who have used this name in alternate realities.
Pryde, Kitty (House of M) - Turned down S.H.I.E.L.D. to become a teacher.