Leah Lewis character Ember Lumen (voice)
Mamoudou Athie character Wade Ripple (voice)
Ronnie del Carmen character Bernie Lumen (voice)
Shila Ommi character Cinder Lumen (voice)
Wendi McLendon-Covey character Gale (voice)
Catherine O'Hara character Brook Ripple (voice)
Mason Wertheimer character Clod (voice)
Ronobir Lahiri character Harold (voice)
Wilma Bonet character Flarrietta (voice)
Joe Pera character Fern Grouchwood (voice)
Matthew Yang King character Alan / Lutz / Earth Pruner (voice)
Clara Lin Ding character Little Kid Ember (voice)
Reagan To character Big Kid Ember (voice)
Jeff Lapensee character Sparkler Customer (voice)
Ben Morris character Wood Immigration Official (voice)
Alex Kapp character Customer / Delivery Person / Earth Landlord (voice)
P.L. Brown character Doorman (voice)
Jonathan Adams character Flarry (voice)
Innocent Ekakitie character Marco and Polo Ripple (voice) (uncredited)
