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Did you know baby rattlesnakes are more dangerous than adult ones? They haven't learned how to control how much venom they secrete. All of you are dangerous. That's why you're here.
~ Dr. Cecilia Reyes.
Dr. Cecilia Reyes is the main antagonist of the 2020 superhero horror film The New Mutants, the final installment of the X-Men film series. She is a former mutant who is a medical doctor of Milbury Hospital, although it turns out she works for Essex Corp since she is tasked with monitoring the New Mutants in hopes of recruiting them into their organization.
She was portrayed by Alice Braga in her first villainous role.
Not much is known about Dr. Reyes, although it is implied that she works for Essex Corp in a rebuilt Essex Institute, continuing the Headmaster's mission of capturing young mutants and forcing them to become weapons for Essex Corp through illegal and horrifying means.
The New Mutants
Dr. Reyes first appears when Dani Moonstar awakens in Milbury Hospital after her reservation was destroyed by the Demon Bear. Dr. Reyes calms her down as she explains to the younger mutant that she is the sole survivor of a massacre that took place at her reservation. Eventually, she introduces her newest patient to other four young teenagers in her care: Sam Guthrie, Illyana Rasputin, Roberto da Costa, and Rahne Sinclair. She reveals to Dani during group therapy that all five of them have suffered a tragedy. Sam brought down a whole mine on his father and coworkers, whereas Roberto burned his girlfriend, Rahne escaped her religiously strict village who branded her and Illyana was haunted by her past in child slavery as well as otherworldly beings called the Smiley Men. Dr. Reyes is able to have them stay at the facility as she herself has the power to create force fields.
Eventually, the young mutants come together when Illyana spikes Reyes' coffee with sleeping pills and they run amok on the hospital grounds. Later, Roberto is swimming with Illyana, until she disappears and the burning manifestation of his girlfriend Juliana appears. Reyes awakens in time and puts Roberto out in the pool. He demands that they leave and during the confrontation, Reyes puts Illyana in solitary confinement. Reyes finally conducts an experiment on Dani and discovers that she can create illusions based on a person's psyche. As Dani goes under, she sees that Reyes has been conducting horrifying experiments on other mutant children. Dr. Reyes prevents the two from fighting.
Later, her true intentions are revealed when Reyes consults her employers who turn out to be Essex Corporation and they instruct her to kill Dani. As Reyes takes Dani away, Rahne immediately suspects that something is wrong. Illyana and Sam are attacked by the Smiley Men while Roberto tries to break through the barrier which has shrunken down. Dani uses her powers to learn of Reyes' true intent, but Rahne arrives in time and severely injures Reyes, forcing her to flee. The New Mutants regroup and realize that in order to escape, they have to kill Reyes. They find her and she reveals that she was training them to be killers for Essex, but that Dani must die due to her dangerous Mutant abilities.
Just as Reyes is about to kill Dani with her powers, the Demon Bear, who had been stalking Dani, arrives and mauls Reyes to death. Later, the group notices that the barrier is no longer around them and they all decide to head into town. Not knowing if she was telling the truth, they all decide to head out together as a family, facing the unknown.
Powers and Abilities
Force Field Generation: Cecilia has the mutant ability to create force fields of different sizes. She can make force fields small enough to contain a person or large enough to contain the Milbury Hospital and its surroundings. Cecilia Reyes' force fields proved to be strong enough to contain Dani, Illyana, Rahne, Sam, and Roberto at the same time and nearly suffocate them to death, as well as contain a powerful blow from the Soulsword.
Rosario Dawson was considered for the role of Dr. Reyes, but dropped out for unknown reasons.
Reyes is one of the only two main antagonists to be a female, the other being Vuk.