Special Guest Stars Brooke Shields as River Fields Guest Stars Anthony Mendez voices Narrator Yara Martinez as Luisa Alver Priscilla Barnes as Magda Bridget Regan as Rose Solano Justina Machado as Darci Factor Melanie Mayron as Professor Marlene Donaldson Keller Wortham as Esteban Santiago Tommy Dorfman as Bobby Eden Sher as PJ Fields Co Starring Ella Allan as Ellie Mia Allan as Anna Lily Donoghue as Young Brenda Rodney Ingram as Young Steve Josh Latzer as Guard Julia Parker as Snooty Woman David L. King as Dr. Price Dale Waddington Horowitz as Senior Studio Executive Karen Constantine as Mia the Editor Leslie Ishii as Nurse Rueben Grundy as Junior Studio Executive