<Li> Stephanie J. Block read the part of Elphaba while the show was being developed, but was eventually replaced by Menzel, who already had a Tony nomination under her belt . </Li> <Li> Nikki Davis - Jones, Liam Doyle, Dale Rapley and George Ure left the UK tour production in September 2014 after it finished its run at the Birmingham Hippodrome and were replaced by Ashleigh Gray, Samuel Edwards, Steven Pinder and Richard Vincent respectively from the Liverpool Empire until the tour closed at The Lowry, Salford in July 2015 . </Li> <Li> Due to the ill health of Jacqueline Hughes during the international tour, her standby Jodie Steele was credited in programmes as an alternate . </Li> <Ul> <Li> Elphaba: Dee Roscioli, Shoshana Bean, Caroline Bowman, Eden Espinosa, Stephanie J. Block, Jackie Burns, Kerry Ellis, Ana Gasteyer, Mandy Gonzalez, Caissie Levy, Willemijn Verkaik, Lindsay Mendez, Julia Murney, Rachel Tucker, Jennifer DiNoia, Jessica Vosk, Donna Vivino, Teal Wicks, Natalie McQueen, Nicole Parker </Li> <Li> Glinda: Annaleigh Ashford, Laura Bell Bundy, Katie Rose Clarke, Amanda Jane Cooper, Megan Hilty, Kara Lindsay, Alli Mauzey, Carrie St. Louis, Jennifer Laura Thompson, Amanda Jane Cooper </Li> <Li> The Wonderful Wizard of Oz: George Hearn, Ben Vereen, David Garrison, Lenny Wolpe, PJ Benjamin, Tom McGowan, Fred Applegate, Peter Scolari, Kevin Chamberlin, </Li> <Li> Fiyero: Taye Diggs, Andy Karl, Derek Klena, Kyle Dean Massey, Aaron Tveit, Ashley Parker Angel, Ryan McCartan, Joey McIntyre, Sebastian Arcelus, Justin Guarini, Adam Lambert </Li> <Li> Madame Morrible: Rue McClanahan, Carol Kane, Jayne Houdyshell, Miriam Margoyles, Rondi Reed, Michele Lee, Judy Kaye, Sheryl Lee Ralph </Li> <Li> Nessarose: Kelli Barrett, Jenna Leigh Green </Li> <Li> Boq: Etai Benson, Alex Brightman, Robin de Jesús, Taylor Trensch, Andy Mientus </Li> </Ul>

What is the plot of wicked the musical