The following is a list of the seiyūs of all Cheer Boys!! characters. Please note that all seiyū names on this page and the rest of the Wiki are written with their given name first and their family name/surname last.
| Seiyū (Japanese) | Voice Actor (English) | Character(s) |
|---|---|---|
|
Yūki Yonai |
Dallas Reid | |
| Nobuhiko Okamoto | Justin Pate | Kazuma Hashimoto |
| Anri Katsu | Tamotsu Kaneda | |
| Ayumi Fujimura | Skyler Davenport | Haruko Bandō |
| Ayumu Murase | Ryūzo Sakuma | |
| Chiharu Sawashiro | Takeru Andō | |
| Hayato Kimura | Natsuki Someya | |
| Hiroki Yasumoto | Jin Dōmoto | |
| Katsuyuki Konishi | Clifford Chapin | Gen Hasegawa |
| Kōsuke Kuwano | Alejandro Saab | Sōichirō Suzuki |
| Reika Uyama | Amber Lee Connors | Chihiro Sakai |
| Ryūichi Kijima | Takuya Nabeshima | |
| Takefumi Yumihara | Takumi Nabeshima | |
| Tasuku Hatanaka | Hisashi Mori | |
| Tomokazu Sugita | Jarrod Greene | Wataru Mizoguchi |
| Yosei Bun | Zixuan Chen | |
| Yoshitaka Yamaya | Kaoru Hanasaki | |
| Yū Hayashi | Cris George | Kōji Tōno |
| Yūki Ono | Kyle Phillips | Shō Tokugawa |
| Yūko Kaida | Satsuki Takagi | |
| Yūya Hirose | Daichi Norita |