, known by her stage name

Stage name

A stage name, also called a showbiz name or screen name, is a pseudonym used by performers and entertainers such as actors, wrestlers, comedians, and musicians.-Motivation to use a stage name:...

 , is a Japanese actress and model. She studied at Mejiro University

Mejiro University

is a private university in Shinjuku, Tokyo, Japan. The predecessor of the school was founded 1918 in Kumamoto, Kumamoto. It was chartered as a women's junior college in 1963. In 1994 it opened as a four-year college. The school also has facilities in Saitama, Saitama Prefecture.-External links:* ...

, where she majored in English. She married actor Joe Odagiri

Joe Odagiri

, born is a Japanese actor.-Career:Commonly known just as Odajō, and also known for his unusual hairstyle and eclectic style of dressing, he is the epitome of Cool Japan...

, who is exactly 11 years her senior, on February 16, 2008, the birthday the couple shares. She reportedly gave birth to a baby boy in February 2011.

Kashii's maternal grandfather is an European-American newspaper reporter, and thus her ethnic background ¼ European. Kashii spent her childhood in Singapore

Singapore

Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

 and attended elementary school there.

Kashii got her start in the entertainment business as an in-house model for the Japanese teen magazine

Magazine

Magazines, periodicals, glossies or serials are publications, generally published on a regular schedule, containing a variety of articles. They are generally financed by advertising, by a purchase price, by pre-paid magazine subscriptions, or all three...

 mc Sister in 2001. Her first acting role was in the movie adaptation of Lorelei: The Witch of the Pacific Ocean

Lorelei: The Witch of the Pacific Ocean

is a Japanese film directed by Shinji Higuchi. A fictional story of the Japanese military saving Tokyo from the third atomic bomb during the waning days of the Second World War, it was the highest-grossing film in Japan during the week of its release.-Plot:...

in which she played the title character.

Movies

Year	| English Title	| Japanese Title	| Role
2005	Linda Linda Linda Linda Linda Linda is a 2005 Japanese film. Its name comes from Japanese punk band The Blue Hearts' hit song "Linda Linda". The film was directed by Nobuhiro Yamashita and stars Aki Maeda, Yu Kashii, and Shiori Sekine as the band members, and Bae Doona as a South Korean foreign exchange student...	リンダ リンダ リンダ	Kei Tachibana
2006	Death Note Death Note (film) is a series of two live-action Japanese films released in 2006 and based on the Death Note manga and anime series by Tsugumi Ohba and Takeshi Obata. The films primarily center on a university student who decides to rid the world of evil with the help of a supernatural notebook that kills anyone...	デスノート	Shiori Akino
2007	Kiiroi Namida	黄色い涙	Tokie
2009	Tsurikichi Sanpei	釣りキチ三平	Aiko Mihira

Dramas

Year	| English Title	| Japanese Title	| Role
2006	My Boss My Hero	マイ☆ボス マイ☆ヒーロー	Yuriko Minami
2007	Sexy Voice and Robo Sexy Voice and Robo is a seinen manga by Iou Kuroda. It was originally serialized in the semi-alternative manga magazine Ikki between 2000 and 2003, and has also been published worldwide, including in North America by Viz Media and Spain by Ponent Mon...	セクシーボイスアンドロボ	Tsukiko Yamano
2007	Detective Conan 2 Case Closed Case Closed, known as in Japan, is a Japanese detective manga series written and illustrated by Gosho Aoyama. The series is serialized in Shogakukan's Weekly Shōnen Sunday since February 2, 1994, and has been collected in 73 tankōbon volumes as of September 2011...	名探偵 コナン 2	Shiho Miyano
2007	Yukan Club Yūkan Club is a Japanese manga written and illustrated by Yukari Ichijo. It is serialized in Shueisha's Bessatsu Margaret. Yūkan Club received the 1986 Kodansha Manga Award for the shōjo category. The manga was adapted into an original video animation by Madhouse Studios...	有閑倶楽部	Noriko Hakushika
2009	Meitantei no Okite Meitantei no Okite is a Japanese television drama series that aired on TV Asahi from 17 April 2009 to 19 June 2009.-Cast:* Shota Matsuda* Yūichi Kimura* Yuu Kashii* Chisun* Jingi Irie* Ryosuke Miura* Ryoko Kobayashi...	名探偵の掟	Mana Fujii
2010	Mori no Asagao Mori no Asagao is a Japanese manga series by Mamora Gōda. It won the 11th Grand Prize for manga at the Japan Media Arts Festival in 2007. It will be adapted into a live-action television drama in 2010.-Synopsis:...	モリのアサガオ	Asami Sawasaki