Takashi Itō

as Naoki Yasuda (1 episode)

as Lau Ka Long, Writer

as Hidehiko Akiyama (1 episode)

as Natsume

as Kazuma Kinoshita（木下 数馬） (10 episodes)

as Yusuke Ishigura

as 石倉佑介 (1 episode)

as Hajime Moriya (1 episode)

as Oku-chan

as Takayuki Okuda（奥田 孝之） (5 episodes)

as Kenji Noda

as Saito Yuto (12 episodes)

as Takashi Oosawa (2 episodes)

as Professor Akutsu (1 episode)

as Seiichi Nakai (3 episodes)

as Suspicious man