- Austin Chan
- Mr. Fluffy
- Clem Cheung
- YeYe (English)
- Elizabeth Daily
- Mr. Hoppy
- Beverly Duan
- Lulu
- Khamani Griffin
- Tolee / Howard / Fufu / Peeking Mice (voice)
- Terrence Hardy
- San San / Bubu (voice)
- Laura Marano
- Mei Mei
- Jade-Lianna Peters
- Kai-Lan
- Jack Samson
- Rintoo / Peeking Mice (voice)
- Ben Wang
- YeYe (Mandarin)
- Frank Welker
- Mr. Dragon
- Angie Wu
- Hoho / Peeking Mice (voice)
- Nicholas Xu
- Crabs
- Xiao Xuan 'Kitty' Zou
- Crabs
