Carlos Oliveira is a skilled soldier and former member of the Umbrella Biohazard Countermeasure Service (U.B.C.S.) in the Resident Evil series. Of South American descent, he's brave, resourceful, and has a strong sense of duty, often risking his life to help others. Carlos plays a key role in Resident Evil 3, aiding Jill Valentine in escaping Raccoon City during the T-virus outbreak. He's known for his combat abilities, loyalty, and charismatic personality.