Image Credit: Getty Images for Paramount Pictu Regretting You is one of this year's hottest romance dramas, and with any book-to-screen adaptation, a star-studded cast is a given! Based on Colleen Hoover's work of the same name, the Paramount Pictures film follows a mother and daughter as they struggle to come to terms with a major personal loss and betrayal while finding their own paths. Below, meet the main cast of Regretting You in our guide.