- Hiro Shimono
- Â Toshinari Seki 22 episodes, 2014
- Kana Hanazawa
- Â Rumi Yokoi 22 episodes, 2014
- Monica Rial
- Â Rumi Yokoi 21 episodes, 2014
- Blake Shepard
- Â Toshinari Seki 21 episodes, 2014
- Jay Perez
- Â Additional Voices 16 episodes, 2014
- Son Phan Le
- Â Additional Voices 16 episodes, 2014
- Nanci Brioso
- Â Additional Voices 16 episodes, 2014
- Kathryne Yzaguirre
- Â Additional Voices 15 episodes, 2014
- Shannon Reed
- Â Additional Voices 13 episodes, 2014
- Chris Ayres
- Â Additional Voices / ... 12 episodes, 2014
- Carolyn Medrano
- Â Additional Voices / ... 10 episodes, 2014
- John Swasey
- Â Additional Voices / ... 9 episodes, 2014
- Kôji Yusa
- Â Tani-sensei 8 episodes, 2014
- Kokoro Kikuchi
- Â Tomoka Hashino 8 episodes, 2014
- David Wald
- Â Narrator / ... 8 episodes, 2014
- Vic Mignogna
- Â Mr. Yellow Tie 7 episodes, 2014
- Tetsuo Sakaguchi
- Â Narrator 6 episodes, 2014
- Jad Saxton
- Â Tomoka 5 episodes, 2014
- Andrew Love
- Â Mr. Adachi / ... 5 episodes, 2014
- Allison L. Sumrall
- Â Some / ... 5 episodes, 2014
- Caitlynn French
- Â Sakura 5 episodes, 2014
- Mark Laskowski
- Â Art Teacher / ... 5 episodes, 2014
- Jirô Saitô
- Â Adachi-sensei 4 episodes, 2014
- Mami Shitara
- Â Yuu Nakama 4 episodes, 2014
- Kyle Jones
- Â Additional Voices / ... 4 episodes, 2014
- Satomi Satô
- Â Sakurako Gotou 3 episodes, 2014
- Tomoaki Ikeda
- Â Science Teacher / ... 3 episodes, 2014
- Corey Hartzog
- Â Uzawa 3 episodes, 2014
- Atsushi Kisaichi
- Â Math Teacher 2 episodes, 2014
- Fumihiko Gotô
- Â Language Teacher 2 episodes, 2014
- Jin Yamanoi
- Â Art Teacher 2 episodes, 2014
- Shigeyuki Susaki
- Â Takahiro Maeda 2 episodes, 2014
- Akari Harashima
- Â Cat A / ... 2 episodes, 2014
- Yuka Keicho
- Â Observer / ... 2 episodes, 2014
- Minoru Shiraishi
- Â Akiyasu Uzawa 2 episodes, 2014
- Greg Ayres
- Â Additional Voices 2 episodes, 2014
- Gabriel Regojo
- Â Maeda 2 episodes, 2014
- Luke Patterson
- Â Coach / ... 2 episodes, 2014
- Annie Mai
- Â Additional Voices / ... 2 episodes, 2014
- Ned Gayle
- Â Additional Voices / ... 2 episodes, 2014
- Kayle Campbell
- Â Additional Voices 2 episodes, 2014
- Tarusuke Shingaki
- Â PE Teacher 1 episode, 2014
- Kenta Matsumoto
- Â Judge 1 episode, 2014
- Kanji Obana
- Â Gold General 1 episode, 2014
- Chinatsu Akasaki
- Â Classmate 1 episode, 2014
- Miyuki Satô
- Â Cat B 1 episode, 2014
- Ikkyû Jaku
- Â Shop Clerk 1 episode, 2014
- Ryô Kuratomi
- Â King 1 episode, 2014
- Tôru Sakurai
- Â Robot Father 1 episode, 2014
- Isamu Yûsen
- Â Male Student 1 episode, 2014
- Megumi Nasu
- Â Music Teacher 1 episode, 2014
- Seigo Yokota
- Â Teacher 1 episode, 2014
- Marie Mizuno
- Â Robot Child 1 episode, 2014
- Miki Itô
- Â Yokoi's Mother 1 episode, 2014
- Tiffany Grant
- Â Additional Voices 1 episode, 2014
- Clint Bickham
- Â Additional Voices 1 episode, 2014
- Kira Vincent-Davis
- Â Boy Bot 1 episode, 2014
- Brittany Deans
- Â Additional Voices 1 episode, 2014
- Cayla Coats
- Â Additional Voices 1 episode, 2014
- Allen Titel
- Â Additional Voices 1 episode, 2014
