EXCLUSIVE: Amira Casar (The Contractor), Billie Boulet (The Worst Witch) and Ashley Brooke (The Blacklist) are set as series regulars, joining Bel Powley, Liev Schreiber and Joe Cole in A Small Light, a National Geographic limited series that tells the remarkable story of a Dutch woman who risked her life to shelter Anne Frank’s family from the Nazis for more than two years and then preserved Anne’s diary. The project comes from Grey’s Anatomy alums Joan Rater and Tony Phelan, Susanna Fogel, ABC Signature and Keshet Studios.