Cameron Mackintosh announced today that Andy Mientus, who captured the hearts of TV viewers with his portrayal of Kyle Bishop on the NBC series "Smash" and talented newcomerCharlotte Maltby will play Marius and Cosette in his acclaimed new production of Alain Boublil & Claude-Michel Schönberg's Tony Award-winning musical masterpiece LES MISERABLES, which returns to Broadway beginning Saturday, March 1 at the Imperial Theatre (249 West 45th Street). Mientus and Maltby join recently announced cast members Ramin Karimloo (Jean Valjean); Will Swenson (Javert);Caissie Levy (Fantine) and Nikki M. James (Eponine) The official opening night for LES MISERABLES is Sunday, March 23. Additional casting, including the roles of Enjolras and the Thenardiers, will be announced in the coming weeks.