Osnes previously played the role during O'Hara's maternity leave this past spring and summer. She previously starred on Broadway as Sandy in the revival of Grease, after winning a nationwide talent search to cast that role on the NBC TV series Grease: You're The One That I Want. Most recently, she played the title role in the new musical Bonnie and Cylde at the LaJolla Playhouse.

South Pacific also currently stars Paulo Szot as Emile de Becque, with Danny Burstein as Luther Billis, Loretta Ables Sayre as Bloody Mary, Andrew Samonsky as Lt. Joe Cable, Eric Anderson, Sean Cullen, Christian Delcroix, Murphy Guyer, Luka Kain, Li Jun Li, Laurissa Romain and Michael Arnold, Becca Ayers, Craig Bennett, Wendi Bergamini, Charlie Brady, Christian Carter, Todd Cerveris, Helmar Augustus Cooper, Margot de la Barre, Laura Marie Duncan, Rob Gallagher, Maryann Hu, Robert Lenzi, Deborah Lew, Peter Lockyer, Garrett Long, Nick Mayo, Liz McCartney, George Merrick, William Michals, Marla Mindelle, Kimber Monroe, Alfie Parker Jr., George Psomas, Greg Roderick, Jason Michael Snow, Jerold E. Solomon, and Correy West.