Cassandra Nova

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Cassandra Nova
Portion of the splash page of X-Men: Red #4 (May 2018) Art by Tom Taylor (pencils), Mahmud A. Asrar (inks), Rain Beredo (colors).
Publication information
Publisher	Marvel Comics
First appearance	New X-Men #114 (July 2001)
Created by	Grant Morrison Frank Quitely
In-story information
Alter ego	Cassandra Nova Xavier
Species	Mummudrai
Team affiliations	Shi'ar Imperium X-Men (in Charles Xavier's body) Marauders
Notable aliases	Charles Xavier, The Immensity (by Shi'ar)
Abilities	Telepathy, Telekinesis, DNA Duplication, Spontaneous cell regeneration, Intangibility, Cosmic fire and infernal control, Immunity to magic and mimicry, Premonition, Mind and body exchange, Mind Control, Soul gathering, Dematerialization

Cassandra Nova Xavier is a supervillain appearing in American comic books published by Marvel Comics, most commonly in association with the X-Men. Created by writer Grant Morrison and artist Frank Quitely, Cassandra first appeared in New X-Men #114 (July 2001). Cassandra is a mummudrai, a parasitic life form born bodiless on the astral plane.

Cassandra is the twin sister of X-Men founder, the telepath Charles Xavier. While in the womb together, Charles "recognized her evil presence and killed" Cassandra, resulting in her stillbirth.^[1] The mummudrai that became Cassandra became telepathically entangled with Xavier, granting Cassandra some psionic powers herself, including the ability to exit the womb and create a body, with which she sought revenge on Xavier.

Cassandra is Xavier's ideological dark shadow, bent on destruction and genocide. She is most infamous for commanding an army of Sentinels to massacre 16 million mutants within the mutant homeland of Genosha. In 2009, Cassandra Nova was ranked as IGN's 50th Greatest Comic Book Villain of All Time,^[2] the only villain from the 21st century to make the list.

Nova will make her live-action debut in Deadpool & Wolverine (2024), set in the Marvel Cinematic Universe (MCU) and portrayed by Emma Corrin.