Kasahara Hiroko roles
Anime
Hiroko has done the following roles in anime.
| Armitage III | Armitage |
| Assemble Insert | Namikaze Maron |
| Bubble Gum Crisis {Episode 1} | Cynthia |
| Dancougar {God Bless Dancougar} | Laura |
| Debut | Fujimura Saori |
| Detonator Orgun | Kumi Jefferson/Mhiku |
| DNA^2 | Kurimoto Ami |
| Dr. Rin ni Kiitemite! [2001-2002] | Hikari no Miko |
| Ginga Hyouryuu VIFAM [debut] | Kachua Piasun |
| Ginga Hyuouryuu Vifam 13 [1998] | Kachua Pearson |
| Handsome na Kanojo | Sawaki Aya |
| Hayou no Tsurugi | Shurain |
| Kindaichi Shounen no Jikenbo | Maria |
| Kurau: Phantom Memory | Jessica |
| Macross II | Ishtar |
| Magic Knight Rayearth | Hououji Fuu |
| Magical Angel Sweet Mint | Mint |
| Megazone 23 {part III} | Ryo |
| Musekinin Kanchou Tylor | Azalyn |
| Mushishi | Maho Matsuno |
| Oniisama he | Nanako |
| Rurouni Kenshin -Meiji Kenkaku Romantan- | Magdalia Sayo |
| Rurouni Kenshin -Meiji Kenkaku Romantan- | Magdalia Sayo |
| Seraphim Call [1999] {Episode 1,12} | Kurimoto Yukina |
| Takamaru | Small Tengu Jiro |
| Tokumu Sentai Shinesman | Kasahara Hitomi |
| Uchi no Tama Shirimasenka? | Tama |
| Ultimate Superman R | Sango |
| Ultimate Teacher | Shiratori |
| Vampire Miyu (TV) | Arisawa Miho |
| Yami to Boushi to Hon no Tabibito | Mariela |
| Yami to Boushi to Hon no Tabibito | Mau |
| Yami to Boushi to Hon no Tabibito | Konbiko |
Games
Hiroko has done the following roles in games.
| Burning Rangers [Sega Saturn] | Chris Parton |
| Debut 21 [Playstation] | Fujimura Saori |
| Detonator Orgun [MegaCD] | Kumi Jefferson |
| Emerald Dragon [PC Engine] | Thamrin |
| Langrisser III [Sega Saturn] | Luna |
| Lunar Wing [Playstation] | Silfa |
| Magic Knight Rayearth [Sega Saturn] | Hououji Fuu |
| Monster Maker [PC Engine] | Rufiia |
| Next King -Koi no Sennen Oukoku- [Playstation] | Fennel |
| No-appointment Gals Olympos [Playstation] | Artemis/Asami |
| Photogenic [Playstation, Sega Saturn] | Hokujou Ayano |
| Princess Maker 2 [FM Towns] | girl |
| Sengoku Blade [Playstation] | Unice |
| Tanjou -Debut- [PC Engine, Sega Saturn] | Fujimura Saori |
| Tengai Makyou Dai Yon no Mokushiroku [Sega Saturn] | Youno |
| Torifels Mahou Gakuen [Playstation] | Felden |
| Virus [Sega Saturn] | Melody |
| Virus [Sega Saturn] | young girl |
| Voice Fantasia [Playstation, Sega Saturn] | Fret |
| Yuukyuu Gensoukyoku 3 Perpetual Blue [Dreamcast] | Melfy Narve |
| Yuukyuu Kumikyoku Perpetual Suite -All Star Project- [Playstation] | Melfy Narve |
| Zutto Issho [Playstation] | Ishizuka Miki |
Drama
Hiroko has done the following roles in audio drama.
| Emerald Dragon [CD] | Thamrin |
| Next King -Koi no Sennen Oukoku- Gaiden [CD] | Fennel Nasturtium |
| Sei naru Shoujo no Uta [CD] | Kama Kimie |
| Shinsengumi Ibun Aoki Ookamitachi no Shinwa Ongaku Special "Makoto" [CD] | ? |
| Yuukyuu Gensoukyoku "Yuukyuu Ongakusai" [CD] | ? |
| Yuukyuu Gensoukyoku 3 Perpetual Blue [CD] | ? |