The full cast:
Jason Donovan, Jac Yarrow, Alexandra Burke
Steffan Lloyd Evans, Bobby Windebank, Femi Akinfolarin, Jabari Braham, Gemma Buckingham, Thalia Burt, Jasmin Colangelo, Jonathan Cordin, Francessca Daniella-Baker, Alexander Day, Andre Fabien Francis, Llandyll Gove, Abigayle Honeywill, Blythe Jandoo, Danny Nattrass, Perry O'Dea, Georgina Parkinson, Emily-Ann Potter, Jon Reynolds, Rochelle Sherona, Katie Singh and Callum Train.
The young performers are Toby Byers, Esme Connolly, Hattie Connolly, Kaylenn Aires Fonseca, Tamar Laniado, Isabelle Mullally, Milly Playle, Teddy Probets, Harrison Skinner, Ellis Sutherland.