Jessica Kelly Siobhán Reilly (born 18 July 1977), better known by the stage name Kelly Reilly, is an English actress. Her performance in After Miss Julie at the Donmar Warehouse made her a star of the London stage and earned her a nomination for a Laurence Olivier Award for Best Actress of 2003. Débuting 20 June 2018, Reilly is the female lead in the new American Paramount Network's cowboy-themed drama series, Yellowstone.
