Lorraine Baines-McFly is a major character in the Back to the Future franchise. She is the wife of George McFly and the mother of the trilogy's protagonist, Marty McFly and his siblings David and Linda.
In the original timeline, Lorraine met and fell in love with George after her father hit him with his car. She later went with him to the Enchantment Under the Sea Dance and they eventually married. However, with her brother Joey in jail, Lorraine began drinking and smoking frequently while disapproving of her son's relationship with his girlfriend Jennifer Parker.
However, Marty's interference when he traveled back in time to 1955 disrupted the timeline. Lorraine ended up developing a crush on Marty when her father hit him with the car instead of George. However, she later developed romantic feelings for George after he saved her from being raped by Biff Tannen. With the timeline restored, George and Lorraine married and had a healthier relationship.