(Covers information from the D.C. comics)
Rosa Cardenas was a member of the S.T.A.R.S. Charlie team.
Rosa was of Mexican-Hope descent, and lived with her native mother on a reservation after her father's death. Her mother was killed at a diner in Raccoon City during the viral outbreak of 1998, leading her to join S.T.A.R.S. Charlie Team to avenge her.
On Halloween of an unspecified year, Carla took part in a S.T.A.R.S. attack on Batavia, Nebraska, where a travelling circus of zombies was terrorising the town. During the assault, Rosa made sure to garrote zombies from behind. After the infected were cleared, an Umbrella agent revealed that the outbreak was deliberately caused by the company to test Charlie Team's skills. Although the man died before they could get any more information out of him, captured information provided the team with two more sites to search: Mexico and Alaska. Rosa was given command of the Alaskan mission, leading Patrick Brady and Quan Williamson.