Guest Stars Kaden Stephen voices Tim Birva Pandya voices Jyoti Matthew Mucci voices Ralphie Mikaela Blake voices Keesha Gabby Clarke voices Dorothy Ann Leke Maceda-Rustecki voices Carlos Lynsey Pham voices Wanda Uncredited Kate McKinnon voices Fiona Frizzle Kate McKinnon voices The Frizz Kate McKinnon voices Ms. Frizzle