An original member of the cast, McFadden has been playing the role of Serena - one of Elle’s sorority sisters - while also standing by for the lead role since October.
She will join a cast that includes Denise Van Outen, Alex Gaumond, Siobhan Dillon, Aoife Mulholland, Carley Stenson, Simon Thomas and Peter Davison.
Legally Blonde The Musical, which is currently booking until Oct. 22, 2011, at the Savoy Theatre, where it has been playing to packed houses since it opened in December 2009.
"College sweetheart and homecoming queen Elle Woods doesn't take no for an answer," according to press notes. "So when her boyfriend Warner dumps her for someone serious, Elle puts down the credit card, hits the books, and heads for Harvard Law! Along the way, Elle proves that being true to yourself never goes out of style."
Directed and choreographed by Tony Award winner Jerry Mitchell, Legally Blonde The Musical has music and lyrics by Laurence O’Keefe and Nell Benjamin, book by Heather Hach, set design by David Rockwell, costume design by Gregg Barnes, lighting design by Kenneth Posner and Paul Miller, sound design by ACME Sound Partners and orchestrations by Christopher Jahnke.
Legally Blonde The Musical is produced in the West End by Sonia Friedman Productions, Robert G. Bartner, Ambassador Theatre Group, Bud Martin, Adam Zotovich, Jamie Hendry Productions, Matthew Byam Shaw and Act Productions.
For more information visit www.legallyblondethemusical.co.uk.