Elenco (na ordem dos créditos)
Hiro Shimono
Toshinari Seki
Kana Hanazawa
Rumi Yokoi
Monica Rial
Blake Shepard
Jay Perez
Additional Voices
Son Phan Le
Nanci Brioso
Kathryne Yzaguirre
Shannon Reed
Chris Ayres
Carolyn Medrano
John Swasey
Kôji Yusa
Tani-sensei
Kokoro Kikuchi
Tomoka Hashino
David Wald
Narrator
Vic Mignogna
Mr. Yellow Tie
Tetsuo Sakaguchi
Jad Saxton
Tomoka
Andrew Love
Mr. Adachi
Allison L. Sumrall
Some
Caitlynn French
Sakura
Mark Laskowski
Art Teacher
Jirô Saitô
Adachi-sensei
Mami Shitara
Yuu Nakama
Kyle Jones
Satomi Satô
Sakurako Gotou
Tomoaki Ikeda
Science Teacher
Corey Hartzog
Uzawa
Atsushi Kisaichi
Math Teacher
Fumihiko Goto
Language Teacher
Jin Yamanoi
Shigeyuki Susaki
Takahiro Maeda
Akari Harashima
Cat A
Yuka Keicho
Observer
Minoru Shiraishi
Akiyasu Uzawa
Greg Ayres
Gabriel Regojo
Maeda
Luke Patterson
Coach
Annie Mai
Ned Gayle
Kayle Campbell
Tarusuke Shingaki
PE Teacher
Kenta Matsumoto
Judge
Kanji Obana
Gold General
Chinatsu Akasaki
Classmate
Miyuki Satô
Cat B
Ikkyû Jaku
Shop Clerk
Ryô Kuratomi
King
Tôru Sakurai
Robot Father
Isamu Yûsen
Male Student
Megumi Nasu
Music Teacher
Seigo Yokota
Teacher
Marie Mizuno
Robot Child
Miki Itô
Yokoi's Mother
Tiffany Grant
Clint Bickham
Kira Vincent-Davis
Boy Bot
Brittany Deans
Cayla Coats
Allen Titel