MadTV Star Nicole Parker will replace Marcie Dodd as Elphaba on January 13, 2009 as the green skinned Elphaba in the Musical Wicked at the Gershwin Theatre. Parker Played Britney Spears, Amy Whinehouse, and Paris Hilton in "Meet the Spartans" and Played "Giselle" in Disaster Movie. She has Impersonated Sarah Palin, Britney Spears, Paris Hilton, Amy Whinehouse etc...