According to the press release:
Completing the 38-member cast are the 5 children who will play the roles of Gavroche, Little Cosette, and Young Éponine: Joshua Colley (Newsies, the 25th Anniversary tour of Les Misérables), Mia Sinclair Jenness (NBC’s recent “The Sound of Music: Live!”, 25th Anniversary tour of Les Misérables), Gaten Matarazzo (Priscilla Queen of the Desert, 25th Anniversary tour of Les Misérables), Angeli Negron (Broadway debut) and Mckayla Twiggs (Once, the upcoming film Winter’s Tale). Colley and Matarazzo will rotate as Gavroche; Negron and Twiggs will rotate in the roles of Little Cosette and Young Éponine; and Jenness will be a member of the Ensemble and understudy both Little Cosette and Young Éponine.
Previous press releases announced the lead cast led by Ramin Karimloo, Will Swenson, Nikki M. James, and Caissie Levy.
The Broadway revival of Les Misérables begins previews March 1, 2014, at the Imperial Theatre, with the official opening night scheduled for Sunday, March 23.
For tickets, go to the Les Mis website.