Sean Archer is a fictional character from the 1997 action film Face/Off, directed by John Woo. He is portrayed by actor John Travolta and serves as an FBI agent who is dedicated to capturing the terrorist Castor Troy, played by Nicolas Cage. Archer's life takes a dramatic turn when he undergoes a surgical procedure to assume Troy's face and identity in order to infiltrate his criminal organization. Throughout the film, Archer struggles with the moral and personal implications of his actions, as he seeks to protect his family and bring Troy to justice. The story explores themes of identity, sacrifice, and the lengths one will go to for love and duty.