Chelsea Perry of Walpole is performing in Boston Ballet’s 2009 production of “The Nutcracker” at the Boston Opera House, running now through Dec. 27, in the role of Party Girl. Perry has been a student at Boston Ballet School for eight years.

Perry joins more than 250 other young dancers from around New England. Four different casts will take on the roles of toy soldiers, angels, polichinelles, dolls, baby mice and party children during Boston Ballet’s 34 performances of “The Nutcracker.