Masami has done the following roles in anime.

Akazukin Chacha [debut]	Chacha
Dr. Rin ni Kiitemite! [2001-2002]	Nanao
Gatekeepers [2000]	Houjou Yukino
H2	Koga Haruka
Juubei-chan	Touyama
Juubei-chan II	Toyama Sachi (Sachin)
Le Chevalier D'Eon [2006-2007]	Prince Auguste
Lost Universe [1998]	Nina
Mahou-sensei Negima (TV) [2005-2006]	Nekane Springfield
Mizuiro Jidai	Kawai Yuko
Rurouni Kenshin -Meiji Kenkaku Romantan- {Episode 17}	Ebisu Marimo
Saint October [2007]	Euan
Shin Hakkenden	Kou
Shura no Toki	Kujyo (Mutsu) Tsubura
Slayers	Amelia
Soreyuke! Uchuu Senkan Yamamoto Yohko (OAV)	Erutron
Yuu + Gi + Ou [Yuugiou] Duel Monsters	Yugi's mother
Yuuyuu Hakusho {The Movie}	Tree Demon

Masami has done the following roles in games.

Akazukin Chacha [PC FX]	Chacha
Anime Freak FX 4 [PC FX] {Niji no Shoujotai Prism Knights}	Yukimura Tsugumi
Boys Be Second Season [Playstation]	Kimura Kaori
Doki Doki On Air 2 [Windows, Mac, Playstation]	guest
Doukyuusei [PC Engine]	Takano Midori
Doukyuusei if [Sega Saturn]	Takano Midori
Game Tengoku [Sega Saturn]	Kato
Generation of Chaos: Desire [PlayStation 2]	?
Hyper Securities 2 [Playstation]	Kahii Moka
OverHit [smartphone]	Red Machia
Sengoku Musou 3 [Wii]	Kaihime
Slayers Royal 2 [Sega Saturn]	Amelia
Slayers Royal [Sega Saturn, Playstation]	Amelia
St. Luminous Jogakuin [Playstation]	Zaizen Minoru
Tenchi Muyou [PC Engine]	Hakua
Tenchi Muyou! Ryououki [PC-FX]	Hakua
Touhou Chin'yuuki Halfling Ha [Playstation]	Goshou

Masami has done the following roles in audio drama.

Bounty Sword [CD]	Fyuris
Dear My Friends -Shaberasete Misemashou- [CD]	?
Minaguchi Yuko no Dear My Friends -Shaberasetemisemashou- [CD]	?
Radamantousu -The Black Arts- Gaiden -Tooi omoi- [CD]	Nishitani Chinami (Kaha Miranda)
Slayers Extra [CD]	Amelia
Soreyuke! Uchuusenkan Yamamoto Yohko [CD]	Erythron