Liz Parker is a fictional character from the television series Roswell, which aired from 1999 to 2002. She is portrayed by actress Shiri Appleby and is known for her intelligence, curiosity, and strong moral compass. Liz is a high school student who becomes involved with Max Evans, an alien with special powers, which leads her into a world of mystery and danger. Throughout the series, Liz navigates her relationships with friends and family while uncovering the secrets of Max and his alien heritage. Her character often grapples with themes of love, loyalty, and the challenges of adolescence, making her a relatable figure for many viewers.