Maria DeLuca lives in Roswell with her single mother Amy Deluca. Her parents broke up when she was a little girl around the same time her dog died. She is high strung, quirky and sarcastic. Although she does not particularly excel in academic subjects, she is shown to be a very talented musician and interested in photography. She is a fiercely loyal friend, confident and compassionate. Although she is the character who struggles most with the aliens' secret, Maria is also shown to keep very cool under pressure. Negative personality traits include being demanding and jealous, which is most evident in her relationship with Michael Guerin. However, she is a passionate person who finds it easy to open up.