Suggestions by @matthewsuckstorf

Idina Menzel

as Aurora in Winx Club Reborn: The Last Earth Fairy

Catherine Taber

as Diana in Winx Club Reborn: The Last Earth Fairy

Grey DeLisle

as Nebula in Winx Club Reborn: The Last Earth Fairy

Samantha Eggar

as Queen Morgana in Winx Club Reborn: The Last Earth Fairy

Albert Brooks

as Klaus in Winx Club Reborn: The Last Earth Fairy

John Cleese

as Klaus in Winx Club Reborn: The Last Earth Fairy

John Goodman

as Mike Peters in Winx Club Reborn: The Last Earth Fairy

Tom Kenny

as Kiko in Winx Club Reborn: The Last Earth Fairy

David Spade

as Jason Queen in Winx Club Reborn: The Last Earth Fairy

Harry Connick Jr.

as Andy in Winx Club Reborn: The Last Earth Fairy

Jennifer Hale

as Mitzi in Winx Club Reborn: The Last Earth Fairy

Jonathan Freeman

as Anagan in Winx Club Reborn: The Last Earth Fairy

Steve Buscemi

as Duman in Winx Club Reborn: The Last Earth Fairy

Patrick Stewart

as Gantlos in Winx Club Reborn: The Last Earth Fairy

Jeremy Irons

as Ogron in Winx Club Reborn: The Last Earth Fairy

Antonio Banderas

as Nabu in Winx Club Reborn: The Last Earth Fairy

Diedrich Bader

as Riven in Winx Club Reborn: The Last Earth Fairy

Steve Carell

as Timmy in Winx Club Reborn: The Last Earth Fairy

Bruce Willis

as Helia in Winx Club Reborn: The Last Earth Fairy

Owen Wilson

as Squire Brandon in Winx Club Reborn: The Last Earth Fairy