- Sora: Miyu Irino
- Riku: Mamoru Miyano
- Kairi: Risa Uchida
- Roxas: Koki Uchiyama
- Namine: Iku Nakahara
- Hayner: Kazunori Sasaki
- Pence: Hayato Taya
- Olette: Yuka Hirasawa
- Tournament Announcer: Junichi Suwabe
- Ansem & Xehanort: Akio Otsuka
- Xigbar: Hochu Otsuka
- Xaldin: Yosuke Akimoto
- Saix: Ginpei Sato
- Axel: Keiji Fujiwara
- Demyx: Kenichi Suzumura
- Luxord: Joji Nakata
- Diz (Ansem): Genzo Wakayama
- Cloud: Takahiro Sakurai
- Aerith: Maya Sakamoto
- Tifa: Ayumi Ito
- Yuffie: Yumi Kakazu
- Cid: Kazuhiro Yamaji
- Sephiroth: Toshiyuki Morikawa
- Leon: Hideo Ishikawa
- Selphie: Mayuko Aoki
- Seifer: Takehito Koyasu
- Fuu: Rio Natsuki
- Rai: Kazuya Nakai
- Auron: Hideo Ishikawa
- Yuna: Mayuko Aoki
- Rikku: Marika Mastumoto
- Paine: Megumi Toyoguchi
- Featuring the Disney Character voice talents of
- Takashi Aoyagi
- Yuko Mizutani
- Koichi Yamadera
- Yutaka Shimaka
- Toru Ohira
- Takashi Inagaki
- Miyoko Aso
- Hisako Kyoda
- Masako Nozawa
- Toshiko Sawada
- Minoru Uchida
- Mayumi Suzuki
- Shintaro Sonooka
- Yutaka Oda
- Ryusei Nakao
- Kozo Shioya
- Osamu Kobayashi
- Hiroshi Fujiyoka
- Eri Ito
- Kazuo Kumakura
- Masashi Ebara
- Kimiko Fukuda
- Takako Kondo
- Yasunori Matsumoto
- Ichiro Nagai
- Rika Matsumoto
- Kyusaku Shimada
- Mika Doi
- Roko Takizawa
- Minoru Inaba
- Kaneta Kimotsuki
- Kujira
- Kazuhiko Inoue
- Taro Ishida
- Takuya Kaihoko
- Hiromi Maeda
- Shion Hino
- Hiroaki Hirata
- Daisuke Hirakawa
- Saori Yumiba
- Haruhiko Jo
- Masuchika Ichimura
- Yuko Doi
- Yuji Mitsuya
- Shigeo Matsuzawa
- Hiroshi Hatanaka
- Tomoaki Nagae
- Shinichiro Miki
- Kaori Aso
- Takashi Matsuo
- Akira Takarada
- Toru Okawa
- Mitsuru Miyamoto
- Riko Hanamura
- Shinya Owada
- Ryuji Saikachi
- Tomie Kataoka
- Ben Hiura
- Hiroshi Tsuchida
- Tetsuo Kanao
- Ikuya Sawaki
- Sukekiyo Kameyama
- Mitsuru Ogata
- Naoki Tatsuta
- Toshiya Ueda
- Tessho Genda
- Masaya Sugimoto
- Mahito Tsujimura
- Yu Hayashi
- Keiko Yamamoto
- Kazuko Hamano
- Masato Funaki
- Masayo Hosono
- Hideo Watanabe
- Takahiro Yoshino
- Aki Unone
- Ichirota Koizumi
- Jun Osuga
- Kazuki Ogawa
- Yoshinori Sonobe
- Chie Matsuura
- Tsutomu Yamauchi
- Toshitsugu Takashina
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- Sora: Haley Joel Osment
- Riku: David Gallagher
- Kairi: Hayden Panettiere
- Roxas: Jesse McCartney
- Namine: Brittany Snow
- Hayner: Justin Cowden
- Pence: Sean Marquette
- Olette: Jessica DiCicco
- Ansem & Xehanort: Richard Epcar
- Xigbar: James Patrick Stewart
- Xaldin: David Dayan Fisher
- Saix: Kirk Thornton
- Axel: Quinton Flynn
- Demyx: Ryan O'Donohue
- Luxord: Robin Atkin Downes
- Diz (Ansem): Christopher Lee
- Cloud: Steve Burton
- Aerith: Mena Suvari
- Tifa: Rachael Leigh Cook
- Yuffie: Mae Whitman
- Cid: Chris Edgerly
- Sephiroth: George Newbern
- Leon: Doug Erholtz
- Selphie: Molly Keck
- Seifer: Will Friedle
- Fuu: Jillian Bowen
- Rai: Brandon Adams
- Auron: Matt McKenzie
- Yuna: Hedy Burress
- Rikku: Tara Strong
- Paine: Gwendoline Yeo
- Featuring the Disney Character voice talents of
- Wayne Allwine
- Tony Anselmo
- Christopher Daniel Barnes
- Jeff Bennett
- Jimmy Bennett
- Jody Benson
- Robby Benson
- Susanne Blakeslee
- Bruce Boxleitner
- Zach Braff
- Corey Burton
- Eddie Carroll
- Pat Carroll
- Dan Castellaneta
- Cameron Clarke
- Bobby Costanzo
- Jim Cummings
- Barbara Dirickson
- Tate Donovan
- Susan Egan
- Bill Farmer
- Harvey Fierstein
- Crispin Freeman
- Jonathan Freeman
- Brian George
- Parker Goris
- Gilbert Gottfried
- Michael Gough
- Robert Guillaume
- Jess Harnell
- James Horan
- Christie Houser
- James Earl Jones
- Charles Kimbrough
- Bruce Lanoil
- Angela Lansbury
- Linda Larkin
- Susie Stevens Logan
- Tress MacNeille
- Cheech Marin
- Kenneth Mars
- Vanessa Marshall
- Ming-Na
- Monie Mon
- Pat Morita
- Mark Moseley
Travis Oates
- Paige O'Hara
- Ken Page
- Kevin Michael Richardson
- Ernie Sabella
- Chris Sanders
- Ken Sansom
- Chris Sarandon
- Eliza Jane Schneider
- Glenn Shadix
- Kath Soucie
- Christopher Steele
- David Ogden Stiers
- Andre Stojka
- James Arnold Taylor
- Russi Taylor
- Jonathan Taylor Thomas
- Jerry Tondo
- Geddie Watanabe
- Scott Weinger
- Frank Welker
- B.D. Wong
- James Woods
- JoAnne Worley
- Additional Voices
- Beau Billingslea
- A.J. Buckley
- Corey Burton
- Paul Butcher
- Robert Clotworthy
- Kevin Delaney
- John DiMaggio
- Courtnee Draper
- Bob Joles
- Rosalyn Landor
- Adam Leadbeater
- J.P. Manoux
- Jon Olson
- Adam Paul
- Bradley Pierce
- Kristen Rutherford
- Audrey Wasilewski
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