Change is good for everyone except Arnold, who's worried that a new teacher -- Ms. Frizzle's younger sister -- will alter the class's "ecosystem."
Trailer
Guest Cast
Lily Tomlin
voices Professor Fizzle
Will Arnett
voices Galapagos Gil
Sandra Oh
voices Dr. Sarah Bellum
Mae Jemison
voices Kathy K. Kuiper
Birva Pandya
voices Jyoti
Lynsey Pham
voices Wanda
Leke Maceda-Rustecki
voices Carlos
Gabby Clarke
voices Dorothy Ann
Mikaela Blake
voices KeeshaCast Appearances
Kate McKinnon
voices Ms. Fiona Frizzle
Miles Koseleci-Vieira
voices ArnoldEpisode Discussion
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