Rebecca is a very sharp-tongued young woman, and has a tendency to be extreme and unpredictable. She is often shown going all out in fights, sometimes even laughing manically. Nevertheless, Rebecca is loyal and does everything for the crew of Maine, including supporting newcomer David where she can. Despite her apparent immaturity, she is rather perceptive, being the first to notice when David is beginning to suffer from cyberpsychosis. She also handles her romantic interest in David maturely.