Cassidy as Elphaba.
Cassidy Janson is an English singer and actress. She was the original Understudy for Elphaba and second Understudy for Nessarose in the West End production of Wicked: The Untold Story of the Witches of Oz. Ashleigh Gray replaced her as Understudy for Elphaba in July 2007, when she replaced Shona White as the Standby. She was then replaced, once again by Ashleigh Gray as Standby in June 2008.