En gras ceux que je connais * Ichikawa Ebizo as Takei Kohei (ep1,7-8 )
* Sugimoto Tetta as Kojima Hideki (ep1,3,7)
* Takashima Masanobu as Doi Kenzo (ep1)
* Yusuke Santamaria as Funada Tsutomu (ep1)
* Toda Keiko as the host club customer (ep1)
*
Hirosue Ryoko (ep1)
* Shiga Kotaro as Tsuchida Goichi (ep1)
* Tsuda Kanji as Komine Kazuhiko (ep1)
* Abe Ryohei as a yakuza (ep1)
*
Gackt as Takegami Teijiro (ep2)
*
Koyuki as Miyase Kumiko (ep2)
* Matsushige Yutaka as Kishikawa Seiji (ep2)
* Jinbo Satoshi as Tsumura Shusuke (ep2)
* Fukui Hiroaki as Takada Hidekazu (ep2)
* Hirayama Yusuke as Goto Hideki (ep2)
* Ishiguro Hideo as Sugiyama Kozo (ep2)
* Kawamura Yosuke as a detective (ep2,5)
* Onoue Hiroyuki as a member of crime lab (ep2-3,5,7-8 )
*
Kamenashi Kazuya as Wakui Masakazu (ep3)
*
Aibu Saki as Goto Megumi (ep3)
* Koichi Mantaro as Dr. Chihara (ep3)
* Hirayama Hiroyuki as Araki Akio (ep3)
* Shinagawa Toru as Hyuga Shinichi (ep3)
* Okuda Tatsuhito (奥田達士) (ep3)
* Sato Takeru as Nakagawa Masaru (ep4-5)
* Kimura Tae as Nakagawa Jun (ep4-5)
* Togi Hideki (東儀秀樹) as Yagi Hitoshi (ep4-5)
* Takaya Yuya (貴山侑哉) as Kinoshita Shoji (ep4)
* David Ito as Nishizaki Minoru (ep5)
*
Nakama Yukie as Akiyoshi Kanako (ep5-6)
* Osawa Itsumi (大沢逸美) as Matsushita Yuriko (ep5-6)
* Rokkaku Shinji (六角慎司) as Aoyama Koichi (ep5-6)
* Yoshida Yo (吉田羊) as Sakamoto Ryoko (ep5-6)
* Kamikawa Takaya as Kitazato Yosuke (ep7-8 )
* Mitsuishi Ken as Aizawa Yoshiyuki (ep7-8 )
* Hamada Akira as Ozaki Kohei (ep7-8 )
* Suzuki Kazuma as Ozaki Shinichiro (ep7-8 )
* Shimizu Koji as Kikuchi Daijiro (ep7-8 )
* Obayashi Takeshi as Kawase Yozo (ep7-8 )
* Yamada Meikyo as Tsuda Yoshikazu (ep7-8 )
*
Katori Shingo as a hijacker (ep8)