Answer: Monique Curnen
Curnen played Detective Anna Ramirez of The Gotham City Police Department. Ramirez's role did not become crucial in the film until later on when Harvey Dent transformed into Two Face. At one point, Dent claimed to be Batman and was taken into police custody and transported to the city jail. Dent did this so that The Joker would go after him and then the real Batman would have the opportunity to take down The Joker. Eventually, The Joker was caught and this was where we saw Jim Gordon alive and back from the dead. Dent got into a police car but, instead of being taken home, he was taken to an old warehouse, bound to a chair surrounded by oil cans. Around that same time, Rachel was taken to a safe location by men supervised by Detective Ramirez, but they took her to another warehouse, bound her to a chair and she was also surrounded by oil cans. Rachel died when a bomb went off but Dent survived, however his face was badly burned and he became Two Face. Dent was taken to the hospital and restrained to his hospital bed. The Joker came, freed him, and he confronted Salvatore Maroni about finding out which officer was responsible for getting Rachel to the warehouse. He told him it was Ramirez. When Dent confronted Ramirez on this, she claimed that some men (presumably The Joker's) blackmailed her into doing this with information on hospital bills. Dent told her to call Gordon's wife and tell her to go to where Rachel died and that her husband, Jim (at this time, Jim was promoted to Police Commissioner), would be there any second. We last saw Ramirez punched in the face by Dent. Curnen's acting credits include guest spots on the TV series "ER", "House M.D.", "Day Break", "Dexter", and "Without a Trace". You can also catch her in the film, "Kate and Leopold".