Suggestions by @matthewsuckstorf

Mindy Sterling

as Griselda in Winx Club Reborn: The Last Earth Fairy

Jennifer Saunders

as Headmistress Faragonda in Winx Club Reborn: The Last Earth Fairy

Tara Strong

as Piff in Winx Club Reborn: The Last Earth Fairy

Kath Soucie

as Tune in Winx Club Reborn: The Last Earth Fairy

Elizabeth Daily

as Digit in Winx Club Reborn: The Last Earth Fairy

Cheryl Chase

as Chatta in Winx Club Reborn: The Last Earth Fairy

Dionne Quan

as Amore in Winx Club Reborn: The Last Earth Fairy

Kristen Bell

as Lockette in Winx Club Reborn: The Last Earth Fairy

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