Episode 4 S01 E04

Ryo Narita (as Fujiki Keisuke) Masahiro Matsuoka (as Yagami Takuro [Taeko's brother]) Nana Mori (as Sawai Mikako) Koharu Sakai (as Miki Kozue [Researcher]) Robin Furuya (as Nozue Takamasa [Detective]) Hitomi Miyauchi (as Yagami Taeko [Keisuke's lover] | [Narrator]) Yoshi Sakō (as Tonami Kengo [Professor]) Soko Wada (as Sujikawa Nihei [Detective]) Akito Kiriyama (as Hasegawa Teruhiko [Neurosurgeon]) Atsuko Maeda (as Karasuma Kyoko [Taeko's friend]) Ken Yasuda (as Sasaki Yoshiro [Researcher])

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