| Producer |
Yuji Naka |
| Director |
Takashi Iizuka |
| Art Director |
Kazuyuki Hoshino |
| Main Programmer |
Tetsu Katano |
| Sound Director |
Jun Senoue |
| Character Designer |
Yuji Uekawa |
| Scenario Writer |
Akinori Nishiyama |
| CG Movie Producer |
Naoto Ohshima |
| CG Movie Director |
Manabu Kusunoki |
SEGA OF AMERICA, Inc. |
| Producer |
Keith Palmer |
| Assisting Producer |
Osamu Shibamiya |
| Web Development and Support |
AJ Briones |
| Executive Producer |
Kurt Busch |
| Network Games Producer |
Paul Stathacopoulos |
| Sr. Product Manager |
Andrew Stein |
| Sr. Marketing Coordinator |
Undyne Stafford |
| English Translation (SEGA OF JAPAN) |
Takahiro Fukada, Monika Hudgins |
| In-Game Text Rewrite |
Scott Peterson |
| Lead Tester |
Fernando Valderrama |
| Assistant Lead Testers |
Amy Albertson, Dennis Lee |
| Testers |
Jeff Junio, Arnold Feener, David Wood, Karen Brown, Jeremy Caine, Mark McCunney, Howard Gipson, Michael Dobbins, Paulita Escalona, David Paniagua, Todd Slepian |
| Script Editors |
Jason Kuo, Fernando Valderrama, Amy Albertson, Josh Mandel, Mari N. Schaal |
| Special Thanks |
Alex Villagran, Barbara Phillips, Cindy Jennings, Dereck Schulman, Jane Thompson, Jin Shimazaki, Joanne Eastman, John Amirkhan, June Honma, Michael McCollum, Ralph Thomas, Sandra Castagnola, Sean Doidge, Shadow Roldan, Sheri Hockaday, Shinobu Toyoda, Stacey Kerr, Tom Miley, Teri A. Higgins, Charles Bellfield, Yuki Kobayashi |
SEGA OF JAPAN |
| Sound Director |
Robert White |
| Writer/Editor/Translator |
Monika Hudgins |
| Writer |
Chieko Nakamura |
| DTP Operator |
Makoto Nishino |
| Designer |
Youichi Takahashi |
| Supervisor |
Kaoru Ichigozaki |
| Script Rewrite/ Sound Director |
Lani Minella |
| Engineering/ Post Production |
Rick Bowman |
| Script Supervisor |
Jo Conroy |
| Studio Engineer |
Brady Schwartz |
| Post Production |
Robert White |
| Planet Web |
Ken Soohoo, Jeff Chin |
Sonic Adventure Staff |
| Executive Producers |
Hayao Nakayama, Shoichiro Irimajiri |
| Project Management |
Shuji Utsumi, Yoji Ishii |
| Producer |
Yuji Naka |
| Director |
Takashi Iizuka |
| Art Director |
Kazuyuki Hoshino |
| Main Programmer |
Tetsu Katano |
| Sound Director |
Jun Senoue |
| Character Designer |
Yuji Uekawa |
| Character Game Designers |
Takashi Iizuka, Takao Miyoshi, Yōjirō Ogawa |
| Player Character Programmers |
Tetsu Katano, Masanobu Yamamoto, Kōichi Toya, Yasuhiro Takahashi, Kazuyuki Mukaida |
| Character Motion Designers |
Yuji Uekawa, Akikazu Mizuno |
| Field Designers |
Takao Miyoshi, Shirō Maekawa, Yōjirō Ogawa, Yuichiro Suzuki, Shun Nakamura |
| Lead Field Programmers |
Masahiro Wakayama, Takuya Matsumoto, Tetsu Katano, Akio Setsumasa |
| Field Programmers |
Takeshi Sakakibara, Yoshitaka Kawabata, Akihiko Shinya, Shinya Matsunami, Kouji Ogino, Masakazu Miura |
| Lead Field Artists |
Kazuyuki Hoshino, Nobuhiko Honda, Hideaki Moriya, Michikazu Tamamura, Masamichi Harada, Satoshi Sakai, Hiroshi Nishiyama |
| Field Artists |
Makiko Banjū, Akira Mikame, Satoshi Okano, Kensuke Kita, Yoshinari Amaike, Ai Ikeda, Kosei Kitamura, Takayuki Hatamura, Yoshitaka Miura, Kazuko Ito, Yuki Takahashi, Takanori Fukazawa, Yasuhisa Nakagawa |
| Visual Effects Designer |
Sachiko Kawamura |
| Field Program Support |
Hideto Fujishita, Yūki Hatakeyama |
| Field Art Support |
Misaka Kitamura, Yoshihito Takahashi, Miho Takayanagi, Nanako Yarimizu, Katsumi Yokota, Wataru Watanabe, Chisai Abe, Maki Kaneko |
| Visual Effects Support |
Naoko Hamada Higashi |
| "CHAOS" Game Designers |
Takashi Iizuka, Norihito Kato |
| "CHAOS" Programmer |
Kōichi Toya |
| "CHAOS" Character Designer |
Yuji Uekawa |
| Enemy Game Designers |
Takao Miyoshi, Daisuke Mori, Kenjiro Morimoto |
| Enemy Programmer |
Yoshihisa Hashimoto |
| Enemy Character Designers |
Kazuyuki Hoshino, Tohru Watanuki, Satoshi Sakai |
| Enemy Program Support |
Shinya Tsukizaki, Mitsuteru Iwaki, Tōru Mita, Mitsuru Takahashi |
| Enemy Art Support |
Satoshi Yokokawa, Masami Hayashi, Satoshi Arai, Takehiko Akabane, Haruo Nakano, Yūichi Ide |
| A-LIFE System Designers |
Shirō Maekawa, Daisuke Mori |
| A-LIFE System Programmer |
Yoshihisa Hashimoto |
| Program Advisor |
Yasuhiro Takahashi |
| Lead A-LIFE Artist |
Tohru Watanuki |
| Artists |
Sachiko Kawamura, Hiroyuki Watanabe |
| System Program Support |
Norio Takama |
| Modeling Art Support |
Chika Kohjitani, Yuichi Higuchi, Toshiyuki Mukaiyama, Shinichi Higashi, Kazuo Komuro, Toshihiro Itō, Toshiyuki Takamatsu, Satsuki Nagano |
| Visual Memory Game Designer |
Shirō Maekawa |
| Visual Memory Programmer |
Jun Fukushima |
| Story Event Director |
Akinori Nishiyama |
| Story Event Coordinator |
Naoto Ohshima |
| Scenario Writer |
Akinori Nishiyama |
| Event Scene Editors |
Shintaro Hata, Kenichi Fujiwara, Eitaro Toyoda |
| Story Sequence Programmer |
Yoshitaka Kawabata |
| Story Event Programmer |
Takaaki Saito, Masato Nakazawa |
| Event Motion Designers |
Naoto Ohshima, Tomonori Dobashi |
| Event Scene Edit Support |
Hiroyuki Abe |
| Event Program Support |
Kō Midoro, Kunihiko Mori |
| CG Movie Producer |
Naoto Ohshima |
| CG Movie Director |
Manabu Kusunoki |
| Lead CG Movie Artist |
Norihiro Nishiyama |
| CG Movie Artists |
Masahiro Kumono, Motomu Hayashi, Tsuyoshi Morimoto, Tamotsu Kushibe, Kōji Kubo, Emiko Hirose, Naomi Honda, Masashi Yamaguchi, Isamu Yamasaki |
| Opening Movie Editor |
Naoto Ohshima |
| MA Studio |
Maruni Studio - Tokyo Japan |
| MA Engineer |
Koji Ito (Maruni Studio) |
| Program Coordinator |
Takahiro Hamano |
| Camera System Programmer |
Takeshi Sakakibara |
| System Tool Support |
Naohide Kinjō |
| Technical Supervisor |
Takuya Matsumoto |
| Technical Staff Coordinators |
Masanobu Yamamoto, Osamu Hori, Kazuyuki Mukaida |
| Art Staff Coordinators |
Minoru Matsuura, Atsushi Seimiya, Chie Yoshida |
| Executive Sound Coordinator |
Yukifumi Makino |
| Lead Music Composer |
Jun Senoue |
| Music Composers |
Kenichi Tokoi, Fumie Kumatani |
| Sound Effects |
Masaru Setsumaru, Tatsuyuki Maeda, Yutaka Minobe, Takashi Endō (1991,Inc.) |
| Music Produced by |
Jun Senoue, Atsushi Kosugi ("Sushi" - Beat On Beat,Inc.) |
| Recording Studios |
A&M Studios - Hollywood CA USA, Cam-Am Recorders - Tarzana CA USA, Avatar Studio - N.Y. NY USA, Beat On Beat Studio - N.Y. NY USA, Sound On Sound Studio - N.Y. NY USA, MIT Studio - Tokyo Japan, MAGNET Studio - Tokyo Japan, SEGA Digital Studio |
| Recording Engineers |
Stan Katayama, Roy Hendrickson, Justin Luchter, Masahiro Fukuhara (MIT Studio), Hirokazu Akashi (SEGA Digital Studio), Yoshitada Miya (SEGA Digital Studio) |
| Recording Coordination |
Atsushi Kosugi ("Sushi" - Beat On Beat,Inc.), Emi Akimoto (Global Vision Productions), Makoto Suzuki (Compozila) |
| Mastering Studio |
Master Disk Studio - N.Y. NY USA, WARNER MUSIC JAPAN - Tokyo Japan |
| Mastering Engineers |
Scott Hull (Master Disk Studio), Isao Kikuchi (WARNER MUSIC JAPAN) |
| Vocals |
Johnny Gioeli, Tony Harnell, Ted Poley, Marlon D. Saunders, Dread Fox, Nikki Gregoroff, Karen Brake, Terry Woods, Maxine Waters |
| Guitars |
Jun Senoue, Mike Campbell, Jon Paris, Rohn Lawrence, Kenichi Tokoi |
| Bass |
Naoto Shibata, Will Lee, Takeshi Taneda, Zev Katz, Jun Senoue, Kenichi Tokoi |
| Drums |
Hiro Honma, Ricky Wellman |
| Keyboards |
Philippe Saisse, Yutaka Minobe, Jun Senoue |
| Percussion |
Bashiri Johnson |
| Horn Section |
East 4th Horns |
| Voice Files Operation |
Hideki Abe |
| Sound Technical Adviser |
Tadashi Joukagi |
| Lyrics Translation |
Takahiro Fukada |
| Character Voice |
Junichi Kanemaru, Kazuki Hayashi, Nobutoshi Canna, Taeko Kawada, Jōji Nakata, Shun Yashiro, Kaori Asoh, Kaho Kōda, Toru Okawa, Chikao Otsuka |
| Postrecording Producer |
Hiroyuki Inage (TOHOKUSHINSHA) |
| Postrecording Director |
Eriko Kimura (TOHOKUSHINSHA) |
| Recording |
OMNIBUS JAPAN |
| Executive Management |
Sadahiko Hirose, Hidekazu Yukawa, Hideki Sato, Hideki Okamura, Okitane Usui |
| Executive Coordination |
Toshinori Asai, Noriyoshi Ōba, Jin Shimazaki, Makoto Oshitani, Shuichi Katagi, Masanao Maeda |
| Marketing Producer |
Tomoaki Ogawa |
| Promotion Management |
Kunihisa Ueno, Kenichi Satō, Seijirou Sannabe, Hirokazu Kanno, Masatoshi Kawaguchi, Mitsuru Takahashi, Kenji Kato, Hiroto Kikuchi |
| Public Relations |
Tadashi Takezaki, Junji Yamazaki, Masanori Hirano |
| Software Support |
Masaharu Yoshii, Takashi Ando, Tomoaki Saito, Kazuhiro Takase, Takashi Shoji, Hiroaki Sano, Hakuro Matsuda, Kenei Unoki, Akira Ōe, Dreamcast LIBRARY STAFF, Masao Oshimi (CRI), Tomonori Saguchi (CRI), Yutaka Sugano |
| Hardware Support |
Nobuhisa Yamada, Osamu Kaji, Shiro Hagiwara, Taku Matsubara, Shoji Nishikawa, Takashi Sekimoto, Shuji Hori, Osamu Hosokawa, Hirokazu Hama, Kenji Tosaki, Atsunori Himoto, Dreamcast HARDWARE STAFF |
| Visual Material Editors |
Yūji Sawairi, Ikuo Ishizaka, Takayuki Ota |
| Manual Production |
Kaoru Ichigozaki, Youichi Takahashi, Chieko Nakamura |
| Browser Production |
Tetsuya Kaku, Hiroaki Ito, Takeshi Ito, ACCESS CO. LTD. |
| Internet Support |
Tomoaki Yoshioka, Mutsuhiro Fujii, Masaya Miyauchi, Takamitsu Shoji |
| Special Thanks |
Tomoko Sasaki, Naofumi Hataya, Sawako Sogabe, Yoshiaki Kashima, Isao Miyazaki (ESP Guitars), Hiroki Hayashi (ESP Guitars), Yosuke Okunari, Kayo Shimizu |
| Executive Supervisor |
Isao Ōkawa |
| . |
MPEG Sofdec, ADX, Sega Digital Studio, Sonic Team Presents |
| Presented by |
Sega Enterprises Ltd. |
SEGA EUROPE |
| Producer |
David Nulty |
| Executive Producer |
Kats Sato |
| Test Manager |
Jason Cumberbatch |
| Language Testers |
Roberto Párraga-Sánchez, Dave Thompson, Michael Lawsiriphat |
| Gameplay Testers |
Daimion Pinnock, Steve Curd, Marlon Grant, Michael Lawsiriphat, Roberto Párraga-Sánchez, Dave Thompson |
| Localisation/Design Co-ordinator |
Sarah Ward |
| Packaging/Design |
Paul Jerem, Ross McLeish |
| Creative Services Manager |
Tony Hinchliffe |