Eden Sher
Star Butterfly (voice)
Adam McArthur
Marco Diaz (voice)
Alan Tudyk
Ludo (voice) / King River Butterfly (voice)
Grey DeLisle
Queen Moon Butterfly (voice)
Fred Tatasciore
Buff Frog (voice)
Abby Elliott
Janna Ordonia (voice)
Rider Strong
Tom Lucitor (voice)
Esmé Bianco
Eclipsa (voice)
Jeff Bennett
Principal Skeeves (voice)
Jenny Slate
Pony Head (voice)
Artt Butler
Mr. Diaz (voice)
Zosia Mamet
Hekapoo (voice)
Dee Bradley Baker
Bald Eagle / Giant Spider (voice)
Mark Gagliardi
Conjoinican (voice)
Jeffrey Tambor
Glossaryck (voice)
Daron Nefcy
Additional Voices (voice)
Kevin Michael Richardson
Rhombulus (voice)
Dana Davis
Kelly (voice)
Michael C. Hall
Toffee (voice)
Jon Heder
Oskar Greason (voice)
Nia Vardalos
Mrs. Diaz (voice)
Keith David
Glossaryck (voice)
Eric Bauza
Cloudy (voice)
Nate Torrence
Ferguson (voice)
Jessica Walter
Meteora Heinous (voice)
Amy Sedaris
Mina Loveberry (voice)
DeeDee Rescher
Miss Skullnick (voice)
Carl Weathers
Omnitraxus Prime (voice)
Matt Chapman
Alfonzo (voice)
Nick Swardson
Sensei (voice)
Natalie Palamides
Foolduke (voice)
Patrick Stump
Ruberiot (voice)
Eddie Perino
Seahorse (voice)
John DiMaggio
Lord Brudo (voice)
Joshua Rush
Jeremy Birnbaum (voice)
Greg Cipes
Tad (voice)
Dave Allen
Mr. Candle (voice)
Tress MacNeille
Lady Avarius (voice)
Kate Higgins
Firstborn (voice)
Damon Jones
Sir Lavabo (voice)
