Ramona Norville was a villainess in the Stephen King novel, Big Driver, as well as in the 2014 Lifetime movie of the same title.
In the film, she was played by Ann Dowd.
Ramona Norville is a librarian as well as the mother of the main antagonist, Lester (aka "Big Driver"). She invited author Tess Thorne to her library for a meet and greet with her fans, and after the event, she suggests an alternate route for Tess to take on her way home to save an extra hour. On that route, Tess' tires are flattened and she is encountered by Big Driver, who offers to help, but later attacks and sexually assaults her, as well as leaving her for dead in a culvert—which contains his other victims. Ramona is eventually found out by Tess when she shows up at her home and points a gun at her. She denies setting Tess up to be her son's latest victim, but after she wrestles the gun from Tess, Ramona boldly admits to the conspiracy and even tells Tess that she's a terrible writer. Ramona pulls the trigger, only to learn that the gun isn't loaded, and she is later stabbed in the stomach by Tess, who later shoots her to death—but not before she increases the volume on Ramona's TV to disguise the gunshot noises.