Anna
Background
Anna is from Brazil. She took a Red Cross Evacuation Ship from Sao Paulo, Brazil, but was only one of five survivors.
During the events of I Am Legend (2007) played by Alice Braga
Anna pulls Robert Neville to safety when he is being attacked by Infected and they return to his home. He wakes up the next day and formally meets Anna and Ethan. Robert shows Anna the Alpha Female who seems to be showing signs of improvement. Later, Anna asks Robert to go with her and Ethan to Vermont where there is supposed to be a Survivor colony, but he insists the colony doesn't exist. During the night the Infected attack the home and break inside. Robert, Anna and Ethan run into the lab and ultimately into the room holding the Alpha Female. The Alpha Male runs into the room and starts cracking the Plexiglas with its head. Robert figures out what he must do and gives Anna a blood sample for the Alpha Female and tells her to take Ethan and run into a tunnel nearby to safety. Anna takes Ethan and escapes. They then drive to Vermont and arrive at the survivor colony which opens and she and Ethan are greeted by the survivors and she hands them the Alpha Female's blood and cure. Alternately, Robert decides to bring the Alpha Female to the Alpha Male when he realizes they are mates. The Alpha Male then leaves with the Alpha Female and Anna, Ethan and Robert head towards Vermont after Anna leaves a new message for any survivors telling them to head towards Vermont.