The official Twitter account for the Girl Friend BETA anime has announced 15 more cast members:
- Haruka Tomatsu is Nonoka Sasahara
- Kaori Ishihara is Yuzuko Hazuki
- Kikuko Inoue is Kanata Amatsu
- Aoi Yūki is Isuzu Shiranui
- Yukari Tamura is Koruri Tokitani
- Minori Chihara is Mahiro Natsume
- Minako Kotobuki is Saya Kagurazaka
- Minami Tsuda is Mutsumi Shigino
- Maaya Uchida is Nao Miyoshi
- Rie Kugimiya is Matsuri Kagami
- Emiri Kato is Rino Suzukawa
- Houko Kuwashima is Shinobu Kokonoe
- Noriko Shitaya is Remi Tamai
- Ayahi Takagaki is Tsugumi Harumiya
- Ai Kayano is Haruko Yumesaki