Top cast
Ryan Seacrest
Self - Host
Auliʻi Cravalho
Self - Performer
James Monroe Iglehart
Self - Performer
Donny Osmond
Self
Demi Lovato
Self - Performer
Ariana Grande
Self - Performer
Amber Riley
Self - Performer
Kristin Chenoweth
Self
Christina Aguilera
Self - Performer
Jordan Fisher
Self - Performer
Kenny Ortega
Self
Josh Groban
Self - Performer
