Tomomi Kasai

Tomomi Kasai (河西 智美) is a Japanese singer, actress and a former member of the idol group AKB48, belonging to Team A. She had a recurring role on Kamen Rider W as Elizabeth, alongside group member Tomomi Itano. Together, they make up the sub-unit Queen & Elizabeth.

On November 10, 2012, it was announced she would be making her solo debut. On November 25, Kasai performed her solo song for the first time, the title announced as "Masaka" (まさか). It was released on December 26. On December 17, Kasai announced that she would leave the group. Her farewell ceremony was on May 3, 2013.

Personal life
She is the younger sister of former singer Rion Kasai.

On May 15, 2021, Kasai announced her marriage to acrobat gymnast and actor Keita Koyama. She gave birth to their first child, a daughter in 2022.

Solo singles

 * "Masaka" (まさか) (2012) - Sales: 44,982
 * "Mine" (2013) - Sales: 22,417
 * "Kietaikurai" (キエタイクライ) (2014) - Sales: 13,697
 * "Ima Sara Sara" (今さらさら) (2014) - Sales: 7,152

Albums

 * "STAR-T!" (2017) - Sales: 3,000

as Queen & Elizabeth

 * "Love Wars" (Kamen Rider W soundtrack)

Theatre

 * Peter Pan (2018–2019) Wendy Darling
 * Annie (2020–2021) Lily St. Regis

Stage units

 * Team K 1st Stage: Hoshi no Ondo (星の温度)
 * Team K 2nd Stage: Kinjirareta Futari (禁じられた2人)
 * Team K 2nd Stage: Fushidara na Natsu (ふしだらな夏)
 * Team K 3rd Stage: Maria
 * Himawari Gumi 1st Stage: Idol Nante Yobanaide (アイドルなんて呼ばないで)
 * Himawari Gumi 2nd Stage: Tonari no Banana (となりのバナナ)
 * Team K 4th Stage: Oshibe to Meshibe to Yoru no Chouchou (おしべとめしべと夜の蝶々)
 * Team K 5th Stage: Dakishimeraretara (抱きしめられたら)
 * Team B 5th Stage: Candy (キャンディー)
 * Team A 2nd Stage: Nageki no Figure (嘆きのフィギュア) (May 28, 2005, replacing Atsuko Maeda)

Television

 * ICE: Aoi
 * Kamen Rider W: Elizabeth
 * Digimon Xros Wars: Bastemon (Voice)
 * Meshibana Keiji Tachibana (2013): Muranaka

Movies

 * Kamen Rider × Kamen Rider W & Decade: Movie War 2010 (2009) as Elizabeth
 * Kamen Rider W Forever: A to Z/The Gaia Memories of Fate (2010) as Elizabeth
 * Neck (2010) as Mao
 * Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core (2010) as Elizabeth