- Kishô Taniyama
- Â Tsukasa / ... 13 episodes, 2020
- Yuki Ono
- Â Satoru 13 episodes, 2020
- Shunsuke Sakuya
- Â Katsuragi 13 episodes, 2020
- Keisuke Ueda
- Â Hiroki 12 episodes, 2020
- Mao Ichimichi
- Â Jin 10 episodes, 2020
- Kôji Yusa
- Â Ron 10 episodes, 2020
- Yasuyuki Kase
- Â Hayashi 8 episodes, 2020
- You Taichi
- Â Tsukasa (young) / ... 7 episodes, 2020
- Nobuo Tobita
- Â Company President 7 episodes, 2020
- Seira Ryû
- Â Mei-ling / ... 5 episodes, 2020
- Naoto Kobayashi
- Â Butterfly's Subordinate / ... 4 episodes, 2020
- Yûji Kameyama
- Â Ambassador / ... 4 episodes, 2020
- Makoto Koichi
- Â Hiroki (young) / ... 3 episodes, 2020
- Ayaka Asai
- Â Satoru (young) / ... 3 episodes, 2020
- Yôji Ueda
- Â Kenji 3 episodes, 2020
- Kentarô Itô
- Â Yokota 2 episodes, 2020
- Masayuki Katô
- Â Katsu Jie Chen 2 episodes, 2020
- Ruriko Aoki
- Â Pupil 2 episodes, 2020
- Setsuji Sato
- Â Nobu 2 episodes, 2020
- Hibiku Yamamura
- Â Ami 2 episodes, 2020
- Airi Ohtsu
- Â Female Waiter at the Hotel / ... 2 episodes, 2020
- Motoi Koyanagi
- Â Butterfly / ... 2 episodes, 2020
- Takayuki Ishii
- Â Katsuragi / ... 2 episodes, 2020
- Hiroki Matsukawa
- Â Dahao Chen 1 episode, 2020
- Ryuta Anzai
- Â Bartender 1 episode, 2020
- Tomokazu Seki
- Â Harakiri Sunshine 1 episode, 2020
- Atsumi Tanezaki
- Â Ren Ren 1 episode, 2020
- Kôhei Amasaki
- Â Bargain 1 episode, 2020
- Hiroki Yasumoto
- Â Inui 1 episode, 2020
- Shin'ya Takahashi
- Â Phantom 1 episode, 2020
- Kenji Hamada
- Â Jun-Jie Zhou 1 episode, 2020
- Tomomichi Nishimura
- Â Tianyu Chen 1 episode, 2020
- Hiromichi Tezuka
- Â Ron's Subordinate 1 episode, 2020
- Kimiko Saitô
- Â Katsuragi's Mother-in-Law 1 episode, 2020
- Kanehira Yamamoto
- Â Guard 1 episode, 2020
- Kazumasa Nakamura
- Â Ron's Subordinate 1 episode, 2020
- Kôichi Sôma
- Â Chen Family Driver 1 episode, 2020
- Eriko Matsui
- Â Waitress 1 episode, 2020
- Ryôko Maekawa
- Â Kenji's Girlfriend 1 episode, 2020
- Natsuko Fuji
- Â Tobacco Shop Aunt 1 episode, 2020
- Uko Tachibana
- Â Inui's Grandmother 1 episode, 2020
- Hitoshi Bifu
- Â Pediatrician 1 episode, 2020
- Makoto Sahara
- Â Chen Family Escort 1 episode, 2020
- Kaori Nakamura
- Â Kenji's Stepmother 1 episode, 2020
- Emiri Iwai
- Â Ambassador (young) 1 episode, 2020
- Kenji Yamauchi
- Â Satomi 1 episode, 2020
- Maiko Irie
- Â Medical Facility Staff 1 episode, 2020
- Tomohiro Ômachi
- Â Medical Facility Staff 1 episode, 2020
- Jun Hirose
- Â Butterfly's Subordinate 1 episode, 2020
- Gentoku
- Â Sakamoto 1 episode, 2020
- Kaoru Katakai
- Â Satoru's Grandmother 1 episode, 2020
- Yuta Aoki
- Â Medical Facility Staff 1 episode, 2020
- Kensuke Shimizu
- Â Butterfly's Subordinate 1 episode, 2020
- Yusuke Kanie
- Â Medical Facility Staff 1 episode, 2020
- Kenichi Inoue
- Â Ron's Subordinate 1 episode, 2020
- Nodoka Hasegawa
- Â Nurse 1 episode, 2020
- Rui Seiyu
- Â Medical Facility Staff 1 episode, 2020
- Yoko Yasuda
- Â Medical Facility Staff 1 episode, 2020
- Hayato Itou
- Â Thug 1 episode, 2020
