- Alan C. Lim
- Cory Carson
- Taron C. Hensley
- Benjamin Bell
- Maisie Benson
- Chrissy Carson
- Kerry Gudjohnsen
- Mama Carson
- Paul Killam
- Papa Carson
- Smith Foreman
- Freddie Firetruck
- Ann Kendrick
- Dr. Ethyl Wiperglass
- Ella Joy Ballesteros
- Frannie Fenderson
- Neena-Sinaii Simpo
- Kimmy O'Tool
- Eli Morse
- Timmy O'Tool
- Stanley Moore
- Janitor / Brett (voice)
- Lina del Roble
- Carmina
- Tyler Hendrix
- Phil the Accountant / Additional Voices (voice)
- Bob Barnes
- Mr. Coaltrain
- Alexander Woo
- Mr. Coaltrain's Caboose
- Allison Bogle
- Betty Bell
- Elliot Larsen
- Junior Bell
- Adelaide Hirasaki
- Additional Voices
- Citlalli Anderson
- Additional Voices
- Tim Hahn
- Additional Voices
- Vincent Lau
- Additional Voices
- Zachary Shore
- Additional Voices
- Lorelei Hirasaki
- Additional Voices
- Hope Bogle
- Additional Voices
- Jason Heaton
- Additional Voices
- Rosemary Reese
- Additional Voices
- Lauren Stutzriem
- Additional Voices
- Alec Newton
- Additional Voices
- Ying-Hsuan Chen
- Additional Voices
- Brandon Rein
- Additional Voices
- Freddie Sulit
- Additional Voices
