Captain Phasma is an antagonist of the 2015 movie Star Wars: The Force Awakens. Phasma is a captain of the First Order under General Hux's command. She is the captain of the squad of which FN-2187, later known as Finn deserts.
She is portrayed by Gwendoline Christie.
A First Order fanatic through and through, Phasma is extremely loyal and steadfast to the First Order, and trains her Stormtroopers to be the same. She takes dark pride in how her troopers turn out, believing like Hux that her men are superior to their Palpatine-era predecessors despite evidence to the contrary. With her fascist mindset, cold detachment, and utter dedication to the First Order cause (not to mention having once come from an undeveloped planet and been "uplifted" by the First Order), Phasma seems in every way the model member of the organization, embodying its so-called strengths and stated values.
However, Phasma also embodies the First Order's brutality, treachery, and venality, being fiercely position-conscious, killing so-called "allies" who knew information that could damage and threaten her standing, and being exceptionally vicious and merciless in her dealings with others, even her own men (as she chastised FN-2187 for trying to look after FN-2003, and then forbade him from continuing to do so).
And, while usually emotionless, cold-blooded, and unsympathetic, she did occasionally showcase sadism, such as when deciding to use Executioner Stormtroopers on Finn and Rose because she wanted it to hurt, as opposed to a quicker death by blasters. In a further display of her inherently manipulative and treacherous nature, after being defeated by Finn, Phasma claimed that he "was always scum", even though she had earlier acknowledged that, prior to his defection, his record had been perfect, with no signs of trouble or disobedience.