Captain Phasma is a high ranking member of the First Order. She wears a special chrome Stormtrooper armor that allows her to shield herself from heavy blaster fire as well as camouflage her with the press of a button. She is the supporting antagonist in Star Wars: The Force Awakens.
As the head of the First Order stormtroopers, Phasma is cold, efficient and commanding among her underlings. But she is not without respect towards her fellow superiors. Phasma believes that duty to the First Order is her first priority, and sees to it that only the best stormtroopers see battle. Due to this, she is a perfectionist and keeps careful track of every stormtrooper under her watch. She is strict and an obvious no-nonsense individual.
In a village on Jakku, Captain Phasma leads the Stormtrooper attack on a mission to locate the rebel pilot Poe Dameron and obtain information on the whereabouts of Luke Skywalker. Under the orders of Kylo Ren, Phasma has her Stormtroopers execute the entire village when and take Poe hostage for information. Onboard the Star Destroyer Finalizer following the battle, she finds one of her Stormtrooper cadets, FN-2187, suffering trauma over the massacre that he takes his helmet off from the stress. Phasma, displeased over his gesture of fear, orders him to put his helmet back on and return to duty.
When FN-2187, now calling himself Finn, helps Poe escape, Phasma informs Kylo Ren and General Hux that it was most likely Finn who helped him since Finn failed to report to his re-conditioning that she had ordered him to attend, as she suspected he was having second thoughts about his loyalty to the First Order. At Starkiller Base, she is ambushed by Chewbacca and interrogated by Finn and Han Solo. While irritated towards Finn's betrayal, she does not panic over her capture, but is threatened and eventually forced to shut down the base's shields for them. After this is done, the trio dump her down a chute into the base's sewage system.