Special Guest Stars Barbara Hershey as Sophie Guest Stars Natasha Mumba as Harmony Stephen Root as Solomon Smythe Marc Menchaca as Keir Jess Salgueiro as Saldana Carolina Bartczak as Dr. Ree Avalon Co Starring Wade Bogert-O'Brien voices Bart Daniel Malik as Finch Matilda Legault as Parsim Sydney Meyer as Grisha AJ Simmons as Farut