Full cast of Nani ka okasii

Satoru Matsuo

18 episodes

Yōsuke Asari

12 episodes

Shogo Hama

10 episodes

Takafumi Imai

6 episodes

Higuchi Hina

3 episodes

Hyadain

2 episodes

Yui Okada

2 episodes

Shingo Fujimori

2 episodes

Suzu Yamanouchi

2 episodes

Ryou Aoki

2 episodes

Oolongta Yoshida

2 episodes

Shinya Kote

2 episodes

Kanon

2 episodes

Nonoka Ono

1 episode

Miwako Kakei

1 episode

Daichi Saeki

1 episode

Kyoka Shibata

1 episode

Manami Hashimoto

1 episode

Mai Nakamura

1 episode

Hajime Shacho

1 episode

LiLiCo

1 episode

Enako

1 episode