Suda Masaki
Kunou Totono
Rol Principal

Ito Sairi
Furomitsu Seiko [Detective of Otonari Police Station]
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Onoe Matsuya II
Ikemoto Yuto [Detective of Otonari Police Station]
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Tsutsui Michitaka
Aoto Nariaki [Inspector of Otonari Police Station]
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Kadowaki Mugi
Raika [Mysterious patient]
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Furukawa Koji
Irie [Detective of Otonari Police Station]
Rolul de Sprijin

Nagayama Eita
Inudo Garo /Kumada Sho [Passenger in bus hijacking incident] (Ep. 1-4, 11-12)
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Kubota Yuki
Sakamoto Masao [Passenger in bus hijacking incident] (Ep. 1-3, 11-12)
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Abe Ryohei
Inudo Otoya [Bus hijacker] (Ep. 1-3, 11-12)
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Morinaga Yuki
Awaji Ippei [Passenger in bus hijacking incident] (Ep. 1-3)
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Satsukawa Aimi
Kashiwa Megumi [Passenger in bus hijacking incident] (Ep. 1-3)
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Kaneda Akio
Narasaki Yukihito [Passenger in bus hijacking incident] (Ep. 1-3)
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Hiccorohee
Tsuyuki Rira [Passenger in bus hijacking incident] (Ep. 1-3)
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Morishita Yoshiyuki
Tabakomori Makoto [Bus driver] (Ep. 1-3, 12)
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Endo Kenichi
Yabu Kanzo [Detective of Otonari Police Station] (Ep. 1)
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Fujieda Yoshiki
Sagae Ken [Murder victim] (Ep. 1)
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Kaneshi Moto
[Ken's friend in high school] (Ep. 1)
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Yamamoto Chikara
[Ken's friend in university] (Ep. 1)
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Shiraishi Mai
Inudo Anju [Murder victim] (Ep. 2-3, 11-12)
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Kosuda Yasuto
[Bartender] (Ep. 2)
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Kodama Raishin
[Post office staff] (Ep. 3)
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Emoto Tasuku
Mifune Michio [Amnesiac bomber] (Ep. 3-4)
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Kohinata Fumiyo
Ushida Goro [Inpatient] (Ep. 3, 5, 10)
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Saotome Taichi
Ihara Kaneto / "Hono no Tenshi" (Ep. 3, 6-7)
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Okayama Amane
"Roku" / "Kaeru" / Orito Rokuta [Patient] (Ep. 3, 6-7, 10)
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Suzuki Kosuke
Amatatsu Haruo [Associate professor of Toei University's faculty of education] (Ep. 3, 6, 8-10)
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Muramatsu Toshifumi
[Police officer] (Ep. 4)
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Hiiragi Hinata
Kunou Totono [Child] (Ep. 4, 7, 9-10)
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Utagawa Shiiko
[Nurse] (Ep. 5)
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Fujimoto Shizuka
[Lady who found the evidence] (Ep. 5)
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Saeki Arata
Yoshimura [Detective] (Ep. 5, 11-12)
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Aijima Kazuyuki
Shimodori Shinji [Goro's former partner] (Ep. 5, 12)
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Chihara Junior
Hagui Gento / "Jack The Ripper" [Serial killer] (Ep. 5, 12)
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Anami Atsuko
Umezu Manami [Greenhouse keeper] (Ep. 6, 10)
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Tomita Keiko
Munakata Saeko [Inpatient] (Ep. 6)
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Nishida Machiko
[Old lady in the hospital] (Ep. 6)
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Inomata Rei
Orito Rokuta [Child] (Ep. 6-7)
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Tokuyama Rito
Ihara Kaneto [Child] (Ep. 6-7)
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Yagishita Kouga
Hiroki [Child who make a deal with "Hono no Tenshi"] (Ep. 6-7)
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Ichijo Kyosuke
[Risa's step-father] (Ep. 6-7)
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Yoshimura Ryo
[Rokuta's mother] (Ep. 6-7)
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Imai Yuki
Sumi Tsubasa [Website admin] (Ep. 7)
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Kondo Yoko
[Child welfare committee staff] (Ep. 7)
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Itakura Takeshi
[Rokuta's homeroom teacher] (Ep. 7)
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Kato Eito
[Rokuta's classmate] (Ep. 7)
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Matsuura Rihito
[Rokuta's classmate] (Ep. 7)
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Kamio Yusuke
[Rokuta's classmate] (Ep. 7)
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Mizukawa Asami
Miyoshi Kiwa [Someone in Totono's past] (Ep. 7-10)
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Sasaki Kuranosuke
Tachibana Takakatsu [Mystery Society member] (Ep. 8-9)
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Ikeuchi Mansaku
"Ivy" / Tsuta Tohei [Mystery Society member] (Ep. 8-9)
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Taguchi Hiromasa
"Dera" [Mystery Society member] (Ep. 8-9)
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Shibuya Kento
"Pan" [Mystery Society member] (Ep. 8-9)
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Oogai Rumika
Raika [Young] (Ep. 10)
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Shida Mirai
Urabesawa Sayaka [Yakiniku restaurant employee] (Ep. 10)
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Horibe Keisuke
Urabesawa Kunio [Yakiniku restaurant owner] (Ep. 10)
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Natsuko
Yokota Rumi [Person of interest] (Ep. 11)
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Mizuno Tomonori
Kato [Homeless man] (Ep. 11)
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Yokota Ryugi
[Casino employee] (Ep. 11)
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Shida Masayuki
[Superintendent of Investigation of Shibahama Police Investigation Headquarters] (Ep. 11)
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Funakoshi Eiichiro
Bizenjima Misao [Inspector of Shibahama Police Investigation Headquarters] (Ep. 11-12)
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Matsumoto Wakana
Nekota Tomi
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Kitamura Takumi
Tsuji Hiromasa [Curator of Wooden Puzzle Box Museum] (Ep. 11-12)
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Okuda Erika
Tsuji Tohiko [Murder victim] (Ep. 11-12)
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Tani Kyosuke
Ono [Inspector of Shibahama Station Investigation Headquarters] (Ep. 11-12)
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Horii Arata
Maekawa [Inspector of Shibahama Station Investigation Headquarters] (Ep. 11-12)
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Morioka Ryu
Tsukioka Katsura [Craftsman] (Ep. 12)
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Takahata Atsuko
Mikitani Saki [Train passenger] (Ep. 12)
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Seki Megumi
Mikitani Hiroko [Train passenger] (Ep. 12)
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Kawahara Eito
Tsuji Hiromasa [Young] (Ep. 12)
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Isozaki Yoshitomo
[Police officer] (Ep. 11)
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Matsumura Mio
[Announcer] (Ep. 11)
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Tamura Tomohiro
[Detective at Yakiniku restaurant] (Ep. 10)
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Shimamura Miyako
Victim (Ep. 5)
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