Bio: New York Police detective Cecilia Perez was investigating Sleepwalker's activities. She had grown up in the area of Brooklyn where Sleepwalker tended to operate and was pleased to hear that since his arrival crime had fallen over 70%. When initially approached by the O.I.E. regarding Sleepwalker she refused to transfer authority over to them. However, she later changed her mind when Sleepwalker became involved with Lullaby. She was assigned to the O.I.E.'s operation as an observer. Although she was unhappy with their methods, she eventually had to persuade Sleepwalker to surrender in order to avoid civilian casualties. Once Sleepwalker was in custody there was little she could do to help him against the O.I.E, so instead she tended to the innocent victims of their attack. Sometime soon after Sleepwalker was freed by Ghost Rider she successfully petitioned the courts for an injunction against the O.I.E. Perez was later called upon during the Mindspawn invasion. She convinced the National Guard to call off an air-strike that would've decimated the Brooklyn neighborhood in favor of calling the Avengers.