On the Bull episode “The Exception to the Rule,” Bull (Michael Weatherly) hears from his high school girlfriend Allison. Their reunion is not a sweet one. Bull travels to the small town where Sue lives to help her. She works in a local factory that she believes is making her and many others in town ill from contaminated water. Bull helps her sue the factory.
Allison is portrayed by Ali Marsh. Marsh is known for her roles on The Affair (Lucy Finley), The Path (Meg Fields), Billy & Billie (Karen), In Plain Sight (Dr. Shelley Finkel), and As the World Turns (Dr. Seidman), among others. Marsh is currently playing Blair Salz in the Netflix drama Gypsy with Naomi Watts and Billy Crudup. Bull airs Tuesdays at 9pm on CBS, right after NCIS and right before NCIS: New Orleans.