Hikaru Yamamoto (山本 ひかる Yamamoto Hikaru) is a Japanese actress from Osaka Prefecture. After winning the Amuse Ohimesama Audition, she was signed onto the Amuse, Inc. talent agency. She played the female lead, Akiko Narumi, in Kamen Rider W. As Akiko, she appeared in four films: Kamen Rider × Kamen Rider W & Decade: Movie War 2010, Kamen Rider W Forever: A to Z/The Gaia Memories of Fate, Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core, and the V-Cinema release, Kamen Rider W Returns. Yamomoto also plays Chacha in The Fateful Sengoku Movie Battle.