Also joining the cast are Rick Holmes as Mr. Wormwood and Natalie Venetia Belcon, who returns to the cast as Mrs. Phelps. They will be welcomed by Mattea Conforti, Rileigh McDonald, Mimi Ryder and Alexandra Vlachos, the four girls who will continue sharing the title role.
This is Belcon's third stint as Mrs. Phelps. Other Broadway credits include creating the role of Gary Coleman in the original cast of Avenue Q, and replacing as Joanne in the original run of Rent.
Case originated the role of Crissy in the Tony Award-winning revival of Hair (Off-Broadway, Broadway, West End), and appeared in Broadway productions of Hands on a Hardbody and Mamma Mia! (Sophie).
Holmes joins the cast of Matilda after completing a recent run in the original cast of The Visit. Other Broadway credits include Peter and the Starcatcher, Spamalot, Cabaret, Major Barbara and Deep Blue Sea.
Spanger appeared in the original Broadway casts of Elf, Rock of Ages (original Sherrie), The Wedding Singer (original Holly, Drama Desk nomination), the 1999 Kiss Me, Kate revival (original Lois Lane).
Matilda The Musical, which opened April 11, 2013, is on track to play its 1,000th Broadway performance shortly after the new crew arrives.
Tickets are available at Telecharge.com, by calling (212) 239-6200, or by coming to the the Shubert Theatre Box Office (225 West 44th Street).
For more information, visit Matildathemusical.com.