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 / Producer
Josh Groban
Self - Performer
Michael Bublé
Self - Performer
Beyoncé
Self - Performer
Derek Hough
Self - Performer
Hayley Erbert Hough
Self - Performer
Julianne Hough
Self - Performer
Darren Criss
Self - Performer
John Stamos
Self - Performer
Josh Gad
Self - Performer
