Ms. Frizzle's kid sister Fiona takes the wheel at Walkerville Elementary, leading the class on wild adventures packed with science-fueled fun. Kate McKinnon, Miles Koseleci-Vieira, Matthew Mintz, Leke Maceda-Rustecki, Birva Pandya, Lily Tomlin, Mikaela Blake, Gabby Clarke, Lynsey Pham, Kaden Stephen Added on Netflix 2018-10-02. Youtube Trailer