Cast-In Order of Appearance:
Anna Sani - Young Izzy Moonbow
Phil LaMarr - Alphabittle Blossomforth, Jerry Calsterwell
Kimiko Glenn - Izzy Moonbow
Steve Blum - Isaac Moonbow
Felicia Day - Aurora Dawn
Vanessa Hudgens - Sunny Starscout
Michael McKean - Argyle Starshine, additional voices
Sofia Carson - Pipp Petals
James Marsden - Hitch Trailblazer
Bahia Watson - Misty Brightdawn
Liza Koshy - Zipp Storm
Andrew Jackson - Fretlock
Ellen Ray-Hennessey - Grandma Figgy, additional voices
Elena Juacto - Minty
Sophia Wylie - Ruby Jubilee
Teresa Gallagher - Sophie
Jeremy Clarkson - Charles
Richard Hammond - Porter
Cary Elwes - Kolhapur
Joseph Swash - Bellerophon
Stacey Kay - Bluebell
Lexie Galante - Snuzzle
Athena Karkanis - Arpeggia
Julie Lemieux - Unknown female figure
Henry Shields - Mysterious Male Voice
Keith Whickam - Salty
Boomer watched the scene from a nearby hill. "It seems as though somebody is trying to compete with us," he said over the radio.
"Interesting," Opaline replied. "We shall have to keep an eye on this woman. She may well cause us trouble if not kept under control. Did you get a good look at her?"
"Unfortunately, no," Boomer replied. "But I did get a sound recording, so we know what she sounds like."
With Geoffrey Rush as P. T. Boomer and Athena Karkanis as Opaline.