Principal Grey

Principal Grey is the main antagonist of the tv. series, ''Mech-X4. ''She is the one responsible for creating the monsters and making Mech-X4 fight them.

Personality
She maybe nice to her students, but her real side is creating monsters. It is not known why she is doing it.

Abilities
She is creating monsters by merging two creature's DNA together, forming that monster, while using her desk at her office. She is also very skilled at fighting.