Joker: Yurusarezaru Sōsakan

is a 2010 Japanese crime drama television series developed by Hideaki Tatematsu and Masaru Ōta from Fuji TV and Kyodo Television respectively. It stars Masato Sakai in his first leading role as mild-mannered detective Date Kazuyoshi of the, Investigation Division 1. Starring alongside Sakai is Ryō Nishikido and Anne Watanabe, the latter using the mononym "Anne".

Main characters

 * Masato Sakai as Date Kazuyoshi
 * Ryō Nishikido as Takeshi Kudō
 * Anne Watanabe as Asuka Miyagi

Supporting characters

 * Hiroyuki Hirayama as Junnosuke Kurusu
 * Ryō as Saeko Katagiri
 * Ren Osugi as Kuniharu Mikami
 * Takeshi Kaga as Masaaki Izutsu

Home media
A DVD box set for the series was released on January 19, 2011. Bonus materials include a behind-the-scenes featurette, an interview with the cast, textless ending sequence, and the series trailer.