Character's name: "Takumi Tsujimoto"
Birthday: 01/26/1982
Birthplace: Gifu Prefecture, Japan
Biography:
Go Ayano (綾野 剛, Ayano Gō, born January 26, 1982) is a Japanese actor.

Character's name: "Harrison Yamanaka"
Birthday: 03/18/1962
Biography:
Etsushi Toyokawa (Japanese: 豊川 悦司 Hepburn: Toyokawa Etsushi, born March 18, 1962) is a Japanese actor.

Character's name: "Takeshita"
Birthday: 07/17/1969
Birthplace: Higashisumiyoshi, Osaka, Japan
Biography:
Kazuki Kitamura is a Japanese film and television actor who won the award for best supporting actor at the 21st Yokohama Film Festival for Minazuki, Kyohansha and Kanzen-naru shiiku as well as the CUT ABOVE Award for Excellence in Film at JAPAN CUTS: Festival of New Japanese Film in New York in 2014.

Character's name: "Reiko"
Birthday: 11/20/1980
Birthplace: Tokyo, Japan
Biography:
Eiko Koike (小池 栄子, Koike Eiko) is a Japanese actress.

Character's name: "Goto"
Birthday: 04/08/1967
Birthplace: Aoi-ku, Shizuoka, Shizuoka Prefecture, Japan

Character's name: "Nagai"
Birthday: 09/03/1992
Birthplace: Koto, Tokyo, Japan
Biography:
Shota Sometani (染谷 将太 Sometani Shōta, born 3 September 1992) is a Japanese actor from Koto, Tokyo. He is known for his protagonist roles in Himizu and Parasyte.

Character's name: "Narrator (voice)"
Birthday: 10/20/1983
Birthplace: Naha, Okinawa, Japan
Biography:
Takayuki Yamada (山田 孝之 Yamada Takayuki, born October 20, 1983) is a Japanese actor and singer. He has two elder sisters and one son. At age 15, he was discovered by talent agency Stardust and made his debut in his acting career in the TV drama Psychometrer Eiji 2 in 1999. One of his first big roles was starring as Matsumoto Sakutaro in Sekai no Chuushin de, Ai wo Sakebu in the 2004 TBS series. In 2005, he made his name known with the movie Densha Otoko. His recent projects include Taiyou no Uta and the Japanese movie The Letter (Tegami) with co-star Erika Sawajiri. Description above from the Wikipedia article Takayuki Yamada, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Character's name: "Natsumi Kawai"
Birthday: 02/09/1980
Birthplace: Mie, Japan

Character's name: "Aoyagi"
Birthday: 10/31/1976
Birthplace: Tokyo, Japan