Shiho Niiyama (新山 志保, Niiyama Shiho; March 21, 1970 – February 7, 2000) was a Japanese voice actress from Matsuyama, Ehime, affiliated with Aoni Production at the time of her death. Niiyama was most known for her roles as Kou Seiya/Sailor Star Fighter in the Pretty Soldier Sailor Moon series, Risa Kanzaki in Neighborhood Story, Suou Takamura in Clamp School Detectives, and Deedlit in Record of Lodoss War: Chronicles of the Heroic Knight. She was also involved in the voice actor group Virgo, who were the voice actresses in the anime and game Ojōsama Sōsamō.
Niiyama was diagnosed with leukemia in 1998 and later underwent a bone marrow transplant on February 7, 2000. At approximately 6:23 A.M., Niiyama suffered a bout of internal bleeding in her lung and died as a result of complications from leukemia. Niiyama was 29 years old at the time of her death. Her final performance was in the TV series Record of Lodoss War: Chronicles of the Heroic Knight as the voice of Deedlit.
Hiroko in Aoki Densetsu Shoot!
Teppei Kisugi (young), Natsuko Ōzora in Captain Tsubasa J
Risa Kanzaki in Gokinjo Monogatari
Dealer (ep 12), Judau's mother (ep 23) in Kuso Kagaku Sekai Gulliver Boy
Seiya Kou/Sailor Star Fighter in Sailor Moon Sailor Stars
Blue delmo Valerie in Agent Aika
Rie Shibusawa in Battle Skipper
Sakada no Jiisan no Tsuma in Chibi Maruko-chan
Suou Takamura in CLAMP School Detectives
Kimiko Ayanokōji in Debutante Detective Corps
Myonsaku Kim in Fatal Fury: The Motion Picture
Atore in Hakugei: Legend of the Moby Dick
Announcer A in Nanatsu no Umi no Tico (ep 36)
Nursery School Teacher in Ogre Slayer
Deedlit in Record of Lodoss War: Chronicles of the Heroic Knight
Kobachi-chan in Soreike! Anpanman