Passenger

The passenger was one of the victims of the Tall Oaks bioterror incident.

Biography
The woman was found by DSO agent Leon S. Kennedy and Helena Harper of the Secret Service during their time underground in the subway. The woman was trapped inside of a train car and pleaded for the agents to let her out. She was trying to find someone named Peter. Desperate to escape the subway and search for him, she opened the shutter blocking the exit and was promptly killed by a horde of zombies.

Further notes

 * Despite there being another character in Tall Oaks named Peter, there is no evidence linking the two together.