Hiroko Kasahara (笠原 弘子, Kasahara Hiroko, born February 19, 1970) is a Japanese voice actress, J-pop singer and stage actress. She sang the ending theme song of the PlayStation 2 role-playing video game Shadow Hearts, titled Ending Theme ~ Shadow Hearts, and the ending theme of the PC and PlayStation 2 visual novel Ever 17: The Out of Infinity, titled Aqua Stripe.

• Katue Pearson in Ginga Hyōryū Vifam (1983)
• Coco in Anpanman (1988)
• Princess Camille in Little Nemo: Adventures in Slumberland (1989)
• Mint in Magical Angel Sweet Mint (1990)
• Nanako Misonou in Oniisama e (1991)
• Fuu Hououji in Magic Knight Rayearth (1994)
• Hazuki Kōyama in Full Moon o Sagashite (2002)

• Oniyuri Kageyama in Hyakko
• Sayo Amakusa / Magdalia in Rurouni Kenshin
• Azalyn in Irresponsible Captain Tylor
• Naomi Armitage in Armitage III (original)
• Ishtar in The Super Dimension Fortress Macross II: Lovers, Again
• Laura Sullivan in Dancouga – God Bless Dancouga
• Chris Parton in Burning Rangers
• Hitomi Kasahara in Shinesman
• Sunako's Mother in The Wallflower
• Arieta Lyuis in Growlanser II: The Sense of Justice
• Sora Akanegasaki in Ever17 -the out of infinity-
• Phorni in Symphonic Rain
• Jessica in Kurau Phantom Memory
• Princess Rose in Yu-Gi-Oh! Duel Monsters GX
• Koudelka Iasant in Shadow Hearts
• Sakura Tomoe in Weiss Kreuz
• Ami in DNA²
• Retsu Unohana in Rock Musical BLEACH
• Kachua Pearson in Vifam (her first voice acting role, at age 13)
• Senri's Mother in Vampire Knight
• Sango Otojima in Kyūkyoku Chōjin R
• Princess Mariel in Yami to Bōshi to Hon no Tabibito
• Maron Namikaze in Assemble Insert

• Ogipro The Next profile
• Official blog
• Hiroko Kasahara at Hitoshi Doi's seiyuu page
• Hiroko Kasahara at IMDb
• Hiroko Kasahara at Anime News Network's encyclopedia