Emma Frost, also known as the White Queen, is a powerful mutant from the X-Men series. She possesses formidable telepathic abilities and the ability to transform her body into diamond, granting her enhanced strength and invulnerability. Initially introduced as a villain and member of the Hellfire Club, Emma later becomes a key member of the X-Men. Her character is known for her complex personality, blending cold pragmatism with a deep commitment to mutantkind. Emma often serves as a teacher and mentor, guiding young mutants in harnessing their powers.