Captain Phasma is the tertiary antagonist in Star Wars: Episode VII - The Force Awakens, and returns in Star Wars: Episode VIII: The Last Jedi. She is a warrior among the Stormtroopers. She was also a member of the First Order.
Star Wars: Episode VII - The Force Awakens Edit
She at first appears commanding inside the village alongside Kylo Ren, as she asked him what to do with the village. After Kylo Ren suggested to destroy it, she agreed, and she gave her command to destroy the village. When Finn took off his Stormtrooper mask, she told him to submit his blasters at once and report to her division about his act of treason, as a punishment. She later told Hux that Finn had never betrayed the First Order before. Phasma later stood next to Hux during his speech.
She was later caught by Finn, Han Solo, and their crew, and was forced to join their team and betray The First Order by tracking the Starkiller Base's shields and deactivating them. She then told them it is a big mistake to rise against Hux's command on the planet super-weapon, but she was thrown into one of Starkiller Base's trash compactors.
Star Wars: Episode VIII Edit
Not much is known about what will happen to her to the film, but acccording to new information for Star Wars: Episode VIII, she somehow escaped the sewers and survived the explosion of Starkiller Base. Phasma is also seen in the trailer fighting Finn over a fiery pit so it is assumed that she will have a duel or a blaster fight with finn