Medusa Gorgon

Medusa, Medusa Gorgon, or Mrs. Gorgon is the mother of Deuce Gorgon. She is a powerful gorgon, and in old mythology, Perseus had slayed her. In the form of Monster High, she just encountered this warrior but he failed. This the joke for Deuce's pet's namesake, Perseus. Medusa is a strong gorgon, who, in the books, is only referred to as Mrs. Gorgon, not revealing her true identity. She's powerful, and has a good strong mind to scold Deuce when needed.

In other parts of the franchise, she attends to be a nag as heard from in "Fright On!". Though she is a good-natured woman, perhaps, she can tend to make her son Deuce uncomfortable and feel the need to "break up on her" with his snake hair snakes as seen in "Fright On!", pretending the phone line is breaking up.