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夏樹 リオ
Family name (in kanji): 夏樹
Given name (in kanji): リオ
Date of birth: 1969-03-05
Hometown: Tokyo, Japan
Blood type: A
Non-anime roles:
Aoi Hatano in "True Love Story 2" (VG) (Japanese)
Baby in "Super Monkey Ball 2" (VG) (Japanese)
Baby in "Super Monkey Ball" (VG) (Japanese)
Benzo in "Final Fantasy X-2" (VG) (Japanese)
Calli in "Final Fantasy X-2" (VG) (Japanese)
Elena Weinberg in "Zone of the Enders" (VG) (Japanese)
Etsuko Sekine in "Shenmue" (VG) (Japanese)
Falier in "Summon Night 3" (VG) (Japanese)
Fayth (Bahamut) in "Final Fantasy X" (VG) (Japanese)
Fujin in "Dissidia Final Fantasy: Opera Omnia" (VG) (Japanese)
Fuu in "Kingdom Hearts II" (VG) (Japanese)
Joy in "Shenmue II" (VG) (Japanese)
Koichi Hirose in "JoJo's Bizarre Adventure: Golden Whirlwind" (VG) (Japanese)
Lila in "Summon Night: Twin Age" (VG) (Japanese)
Linda Martini in "Snowboard Kids 2" (VG) (Japanese)
Linda Martini in "Snowboard Kids Plus" (VG) (Japanese)
Linda Martini in "Snowboard Kids" (VG) (Japanese)
Lucrecia Crescent in "Dirge of Cerberus: Final Fantasy VII" (VG) (Japanese)
Lulu in "Dissidia Final Fantasy: Opera Omnia" (VG) (Japanese)
Lulu in "Final Fantasy X" (Japanese)
Lulu in "Final Fantasy X-2" (Japanese)
Nancy Nale in "Snowboard Kids 2" (VG) (Japanese)
Nancy Nale in "Snowboard Kids Plus" (VG) (Japanese)
Nancy Nale in "Snowboard Kids" (VG) (Japanese)
Silvia Brother in "DESIRE remaster ver." (VG) (Japanese)
Sion Eltnam Atlasia in "Melty Blood" (VG) (Japanese)
Teco in "Summon Night 3" (VG) (Japanese)
Trish Una in "JoJo's Bizarre Adventure: Golden Whirlwind" (VG) (Japanese)
Wanda in "The Fairly Oddparents" (animated TV series) (Japanese)
Other article: Show:
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Staff in:
Battle Athletes (OAV) : Theme Song Performance (ED)
El Hazard: The Alternative World (TV) : Theme Song Performance (ED2)
El-Hazard: The Wanderers (TV) : Theme Song Performance (ED)

Cast in:
Agent Aika (OAV) as White B
Air Master (TV) as Tomiko Seriguchi
Akachan to Boku (TV) as Umeko (child)
Angelic Layer (TV) as Tsubasa McEnzie (ep 18)
Ashita no Nadja (TV) as Black Cat (ep 33)
Avenger (TV) as Io 
Bakukyū Renpatsu!! Super B-Daman (TV) as Akira Hōjō
Battle Athletes (OAV) as Akari Kanzaki
Battle Athletes Victory (TV) as Akari Kanzaki
Battle Athletes Victory ReSTART! (TV) as Grandmother (ep 12)
Black Jack: Child from the Sky (OAV) as Miguela
(The) Brave Express Might Gaine (TV) as Audrey
(The) Brave Fighter of Legend Da-Garn (TV)
(The) Brave Fighter of Sun Fighbird (TV)
Bubblegum Crisis: Tokyo 2040 (TV) as Linna Yamazaki
Carnival Phantasm (OAV) as Sion Eltnam Atlasia
Case Closed (TV) as Female staff A (eps 785-786); Marie Inoue (ep 588)
Chocotto Sister (TV) as Santa (ep 2)
CLAMP School Detectives (TV) as Girl A (ep 1)
Croisée in a Foreign Labyrinth - The Animation (TV) as Stationary Shop Owner (ep 3)
Crush Gear Nitro (TV) as Yumi Akuzawa (ep 6)
Daphne in the Brilliant Blue (TV) as Hanaoka's Wife (ep 7); Oba-san (ep 15)
Deltora Quest (TV) as Elsa (ep 28)
Devil May Cry (TV) as shop assistant (ep 4)
Diamond Daydreams (TV) as Takeda's wife (ep 8)
Digimon Adventure 02 (TV) as Chichos; Chizuru Inoue; Miyako Inoue; Momoe Inoue
Digimon Adventure: (TV) as Valkyrimon (ep 63)
Digimon: Diaboromon Strikes Back (movie) as Miyako Inoue
Digimon: The Golden Digimentals (movie) as Miyako Inoue
Dirty Pair Flash (OAV) as Female computer (1); Receptionist (1)
Domain of Murder (OAV) as Hitomi Sagawa
Don't Leave Me Alone, Daisy (TV) as Tami
Doraemon the Movie: Nobita's Three Visionary Swordsmen (movie 1-15) as Maid
DT Eightron (TV) as Mei
Duel Masters (TV) as Kintaro's Mother (ep 12)
El Hazard: The Alternative World (TV) as Nanami Jinnai
El-Hazard 2: The Magnificent World (OAV) as Nanami Jinnai
El-Hazard: The Magnificent World (OAV) as Nanami Jinnai
El-Hazard: The Wanderers (TV) as Nanami Jinnai
Evangelion: 1.0 You Are (Not) Alone (movie)
Fake (OAV) as Maria
(The) File of Young Kindaichi (TV) as Mio Chigira (ep 138)
Full Metal Panic! (TV) as Eri Kagurazaka
Full Metal Panic! Invisible Victory (TV) as Eri Kagurazaka
Full Metal Panic! The Second Raid (TV) as Eri Kagurazaka
Full Metal Panic? Fumoffu (TV) as Eri Kagurazaka
Gankutsuou: The Count of Monte Cristo (TV) as Marchioness G; Michelle
GaoGaiGar: King of the Braves (TV) as Isuzu Yamaha (EI-10; eps 9, 16)
Gekito! Crush Gear Turbo (TV) as Nina Maier
Geneshaft (TV) as Gloria; Ryoko Burning; Sybil
Genki Bakuhatsu Ganbaruger (TV) as Boy (ep 3)
Getbackers (TV) as Hevn
Ghost Stories (TV) as Maki (ep 19)
Guin Saga (TV) as Flori (ep 11)
High School Aurabuster (OAV) as Aya Mizusawa
Hyper Police (TV) as Shimoda (eps 16, 22)
Idaten Jump (TV) as Yoko
K-ON! (movie) as Yui's mother
K-ON! (TV) as Yui's mother (ep 7)
Kaikan Phrase (TV) as Yumi (8 episodes
eps 1, 11, 28, 30, 37-40

Kikou Keisatsu Metal Jack (TV) as Announcement (ep 2); Girl (eps 4, 9); Girl A (ep 10); Girl B (ep 32); Waitress (ep 12)
King of Thorn (movie)
Kishin Taisen Gigantic Formula (TV) as Michiru Mizoguchi
Knight Hunters (TV) as Maki (ep 3)
Kokoro Library (TV) as Kaede Hoshino (ep 1)
Libra of Nil Admirari (TV) as Miyako Sagisawa (ep 11); Perry; Shiori Tokimiya
Lunar Legend Tsukihime (TV) as Female Host (eps 4, 8); Female Newscaster (ep 12); Grandmother (eps 1-2)
Macross 7 (TV) as Miho
Macross 7 Encore (OAV) as Miho Miho
Macross 7 Plus (OAV) as Miho (ep 6)
Malice@Doll (OAV) as Doris@Doll
MegaMan NT Warrior (TV) as Millionaire
(The) Melody of Oblivion (TV) as Chief V (ep 11)
Mobile Suit Gundam Narrative (movie) as Stephanie Luio
Mobile Suit Gundam Seed C.E.73: Stargazer (ONA) as Newscaster A (ep 3); Nurse (ep 1); Sven's Mother
Mobile Suit SD Gundam Festival (movie) as Matilda
Mobile Suit Zeta Gundam: A New Translation (movies) as Stephanie Luio
Monochrome Factor (TV) as Chihara-sensei (eps 2, 10); Kanata Kujō (ep 24)
Nagasarete Airantou (TV) as Beefsteak (Shinobu's child cow; ep 18); Toono-san (Mei Mei's kappa; 10 episodes
eps 14-17, 19-20, 23-26

Ninja Nonsense (TV) as Kaede's mom
Orphen: The Revenge (TV) as Natasha (ep 14)
Phoenix (TV) as Female (The Future Chapter)
Pokémon Advance (TV) as Asuna (eps 55-56)
Princess Minerva (OAV) as Orlin Carrie
Pururun! Shizuku-chan (TV) as Princess Stella (eps 21, 39); Sister Rinse
Pururun! Shizuku-chan Aha (TV) as Sister Rinse; Whip-chan (eps 21, 27, 30)
Real Drive (TV) as Dr. Momoyama (ep 6)
Resident Evil: Degeneration (movie)
Rideback (TV) as Female Caster (ep 5)
Rocket Girls (TV) as Hiroko Morita
Rockman.EXE Axess (TV) as Silk
Rockman.EXE Beast (TV) as Makoto Aoki; Millionaire (Beyondard)
Saki Episode of Side A (TV) as Nozomi Atarashi (ep 2)
Samurai 7 (TV) as Waarya
Sands of Destruction (TV) as Saleswoman (ep 7)
Sgt. Frog (TV) as Tamurin (ep 236)
Shadow (OAV) as Karyuu
Shangri-La (TV) as Karin's Mother (ep 23)
Shinseiki Duel Masters Flash (TV) as Sachiko Kugami
Shugo Chara! (TV) as Yukari Sanjō
Shugo Chara!! Doki (TV) as Yukari Sanjō
Shura no Toki: Age of Chaos (TV) as Waarya
Silk Road Kids (TV) as Ran
Skip Beat! (TV) as Shōko Aki
(The) Snow Queen (TV) as Kai; Prince (ep 28)
Super Robot Wars OG: Divine Wars (TV) as Rio Meilong
Super Robot Wars OG: The Inspector (TV) as Rio Meilong
Super Robot Wars Original Generation - The Animation (OAV) as Rio Mei Long
Tactical Roar (TV) as Clio Aquanaut
Tenchi Muyo! Ryo Ohki (OAV 3/2003) as Rea Masaki
Tenchi Muyo! Ryo Ohki (OAV 4/2016) as Rea Masaki
Tenchi Muyo! Ryo Ohki (OAV 5/2020) as Reia Masaki
Tenchi Muyo! Ryo Ohki: Final Confrontations (OAV) as Rea Masaki
ToHeart2 (TV) as Lucy Maria Misora (eps 6-7, 11, 13)
ToHeart2 adnext (OAV) as Lucy Maria Misora
ToHeart2 adplus (OAV) as Lucy Maria Misora
ToHeart2 Dungeon Travelers (OAV) as Lucy Maria Misora
Tokko (TV) as Ryoko Ibuki
Turn A Gundam (TV) as Merrybell Gadget
Turn A Gundam: Moon Butterfly (movie 2) as Marybell Gadget
Tweeny Witches (TV) as Head
Tweeny Witches: The Adventures (OAV) as Head (ep 1)
Tytania (TV) as Waitress (eps 10-11, 23)
Ultraviolet: Code 044 (TV) as Citizen (ep 5); Mother (ep 4)
White Album 2 (TV) as Youko Touma
YAT Anshin! Uchū Ryokō (TV) as Miho (ep 3)
Yomigaeru Sora - RESCUE WINGS (TV) as Saori Hasegawa (ep 6)
Yonimo Osoroshii Grimm Dōwa (OAV) as Gretel (ep 1)
Yosuga no Sora - In solitude where we are least alone (TV) as Nao's mother (eps 1, 7-8)
You're Under Arrest (TV) as Announcer (ep 39)
Zoids/ZERO (TV) as Naomi Fluegel
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