- Mitsuru Miyamoto
-  Roger Smith 26 episodes, 1999-2003
                    
- Steve Blum
-  Roger Smith 26 episodes, 1999-2003
                    
- Akiko Yajima
-  R. Dorothy Wayneright / ... 25 episodes, 1999-2003
                    
- Motomu Kiyokawa
-  Norman Burg 25 episodes, 1999-2003
                    
- Tesshô Genda
-  Dan Dastun 25 episodes, 1999-2003
                    
- Lia Sargent
-  R. Dorothy Wayneright / ... 25 episodes, 1999-2003
                    
- Peter Lurie
-  Dan Dastun 25 episodes, 1999-2003
                    
- Emi Shinohara
-  Angel 19 episodes, 1999-2003
                    
- Wendee Lee
-  Angel / ... 19 episodes, 1999-2003
                    
- Unshô Ishizuka
-  Alex Rosewater 16 episodes, 1999-2003
                    
- Michael Forest
-  Alex Rosewater 16 episodes, 1999-2003
                    
- Alan Oppenheimer
-  Norman Burg 13 episodes, 2003
                    
- Milton James
-  Norman Burg 12 episodes, 1999-2000
                    
- Jamieson Price
-  Big Ear / ... 12 episodes, 1999-2003
                    
- Shinpachi Tsuji
-  Big Ear 11 episodes, 1999-2003
                    
- Ezra Weisz
-  Additional Voices / ... 11 episodes, 1999-2003
                    
- Hôchû Ôtsuka
-  Jason Beck 9 episodes, 1999-2003
                    
- Issei Futamata
-  Alan Gabriel 8 episodes, 2003
                    
- Bob Buchholz
-  Jason Beck 9 episodes, 1999-2003
                    
- Crispin Freeman
-  Alan Gabriel 8 episodes, 2003
                    
- Michael McConnohie
-  Michael Seebach / ... 8 episodes, 1999-2003
                    
- Katsunosuke Hori
-  Michael Seebach / ... 7 episodes, 1999-2003
                    
- Gorô Naya
-  Gordon Rosewater 6 episodes, 2000-2003
                    
- Eiji Yanagisawa
-  Police / ... 6 episodes, 1999-2003
                    
- William Frederick Knight
-  Gordon Rosewater 6 episodes, 2000-2003
                    
- Sayuri
-  Vera Ronstadt / ... 5 episodes, 2003
                    
- Dorothy Elias-Fahn
-  Louise Ferry 6 episodes, 2000
                    
- Jim Slade
-  Additional Voices 6 episodes, 2000
                    
- Gary Dubin
-  Additional Voices / ... 6 episodes, 2000
                    
- Don Fischer
-  Additional Voices / ... 6 episodes, 2000
                    
- Phil Swell
-  Additional Voices 6 episodes, 2000
                    
- Matt Adler
-  Additional Voices 6 episodes, 2000
                    
- Jonathan C. Osborne
-  Additional Voices 6 episodes, 2000
                    
- Carolyn Hennesy
-  Vera Ronstadt / ... 5 episodes, 2003
                    
- Matthew Mercer
-  Additional Voices 6 episodes, 2000
                    
- Mari Devon
-  Vice President 5 episodes, 1999-2003
                    
- Michelle Ruff
-  Additional Voices / ... 5 episodes, 1999-2000
                    
- Jessica Gee-George
-  Additional Voices 5 episodes, 2000
                    
- Steve McGowan
-  Additional Voices / ... 5 episodes, 1999
                    
- Mona Marshall
-  Additional Voices / ... 4 episodes, 1999-2000
                    
- Tomomichi Nishimura
-  Morgan Skyler / ... 4 episodes, 2000-2003
                    
- Tony Oliver
-  Additional Voices / ... 4 episodes, 2000-2003
                    
- Mike Reynolds
-  Additional Voices / ... 4 episodes, 1999
                    
- Kevin Brief
-  Additional Voices 4 episodes, 1999
                    
- David Ellenstein
-  Additional Voices / ... 4 episodes, 1999
                    
- Mason LaPayote
-  Additional Voices 4 episodes, 1999
                    
- Katsuhisa Hôki
-  Commitee Member / ... 3 episodes, 2000-2003
                    
- Mayumi Yanagisawa
-  Additional Voices / ... 3 episodes, 1999-2000
                    
- Hideto Ebihara
-  Additional Voices / ... 3 episodes, 1999-2003
                    
- Miho Yoshida
-  Dancer / ... 3 episodes, 2000-2003
                    
- Edie Mirman
-  Additional Voices 3 episodes, 2000
                    
- Tom Fahn
-  Additional Voices / ... 3 episodes, 2000
                    
- Peter Doyle
-  Senior Officer / ... 3 episodes, 2003
                    
- Michael McCarty
-  Darres / ... 3 episodes, 1999-2003
                    
- Akio Nojima
-  R. Instro 2 episodes, 1999-2003
                    
- Mitsuo Senda
-  Beck's Subordinate / ... 2 episodes, 2000-2003
                    
- Jun'ichi Sugawara
-  Chief Engineer / ... 2 episodes, 2003
                    
- Kenji Hamada
-  Beck's Subordinate / ... 2 episodes, 1999
                    
- Hiroyuki Yokoo
-  Phil / ... 2 episodes, 2003
                    
- Kazuo Oka
-  Fisherman / ... 2 episodes, 1999
                    
- Kuniko Yoshioka
-  Announcer 2 episodes, 1999
                    
- Takeharu Ãnishi
-  Commander 2 episodes, 2003
                    
- Hiroshi Naka
-  Forensics / ... 2 episodes, 2000-2003
                    
- Naohiro Yamamoto
-  Additional Voices 2 episodes, 1999
                    
- Eri Miyajima
-  Additional Voices 2 episodes, 1999
                    
- Shizuka Arai
-  Additional Voices 2 episodes, 1999
                    
- Kirk Thornton
-  R. Instro 2 episodes, 1999-2003
                    
- Doug Stone
-  Additional Voices 2 episodes, 2000
                    
- Dana Craig
-  Morgan Skyler 2 episodes, 2000
                    
- Karen Strassman
-  Citizen / ... 2 episodes, 2003
                    
- Ron Roggé
-  Bank Guard / ... 2 episodes, 2003
                    
- Osamu Saka
-  Sven Mauriski 1 episode, 1999
                    
- Sakiko Tamagawa
-  Sybil Rowan 1 episode, 2000
                    
- Ken'ichi Ogata
-  Miguel Soldano 2 episodes, 1999
                    
- Kôji Ishii
-  Darres 1 episode, 1999
                    
- Miyuki Ichijô
-  Melissa Fraser 1 episode, 1999
                    
- Mikio Terashima
-  Giseng 1 episode, 1999
                    
- Shin'ichirô Miki
-  Oliver 1 episode, 2000
                    
- Daisuke Sakaguchi
-  Jeff Meyers 1 episode, 2000
                    
- Takeshi Aono
-  Mr. Wise 1 episode, 2000
                    
- Tôru Furuya
-  Bonnie Fraser 1 episode, 1999
                    
- Makoto Nagai
-  Bartender 1 episode, 1999
                    
- Eiji Maruyama
-  Old Men 1 episode, 1999
                    
- Toshio Furukawa
-  Eugene Grant 1 episode, 2000
                    
- Haruna Ikezawa
-  Laura 1 episode, 2000
                    
- Nobuo Tanaka
-  R. Frederick O'Reilly 1 episode, 2003
                    
- Keiichi Sonobe
-  T-Bone 1 episode, 2003
                    
- Michihiro Ikemizu
-  Rick Fraser 1 episode, 1999
                    
- Chafûrin
-  Rene Rigetti 1 episode, 1999
                    
- Takkô Ishimori
-  Timothy Waynewright 1 episode, 1999
                    
- Sho Saito
-  Old Lady 1 episode, 1999
                    
- Ryôichi Tanaka
-  Robert Ferry 1 episode, 2000
                    
- Yuzuru Fujimoto
-  Santa Claus 1 episode, 2000
                    
- Shin Aomori
-  Oliver Garland 1 episode, 2000
                    
- Jun Ishimaru
-  Police 1 episode, 2000
                    
- Toshiharu Sakurai
-  Beck's Subordinate 1 episode, 2000
                    
- Katsuhiko Sasaki
-  Jim McGowen 1 episode, 2003
                    
- Chikao Ôtsuka
-  Roscoe Fitzgerald 1 episode, 2003
                    
- Fumihiko Tachiki
-  Paul Readerman 1 episode, 1999
                    
- Tôru Ôkawa
-  Thug 1 episode, 1999
                    
- Kazuhiko Kishino
-  Ed Hillery 1 episode, 1999
                    
- Kôji Tobe
-  Old Men 1 episode, 1999
                    
- Kyoko Tsuruno
-  Louise Ferry 1 episode, 2000
                    
- Masaru Matsumoto
-  Man 1 episode, 2000
                    
- Kaori Mizuhashi
-  Tami 1 episode, 2003
                    
- Katsumi Suzuki
-  Legal Adviser 1 episode, 2003
                    
- Toshiko Sawada
-  Kelly Fitzgerald 1 episode, 2003
                    
- Tatsuyuki Jinnai
-  Anthony Gauss 1 episode, 1999
                    
- Masaki Aizawa
-  Commitee Member 1 episode, 2000
                    
- Chie Tsuruno
-  Pero 1 episode, 2000
                    
- Osamu Hosoi
-  Legal Adviser 1 episode, 2003
                    
- Sayaka Ôhara
-  Girl 1 episode, 1999
                    
- Hisao Egawa
-  Waiter 1 episode, 1999
                    
- Masayuki Nakata
-  Police 1 episode, 1999
                    
- Takashi Nagasako
-  Janitor 1 episode, 2000
                    
- Tomoyuki Hatta
-  Additional Voices 1 episode, 2000
                    
- Toshihide Tsuchiya
-  Army Police 1 episode, 2003
                    
- Takayuki Fujimoto
-  Citizen 1 episode, 2003
                    
- Hiroaki Ishikawa
-  Storekeeper 1 episode, 2003
                    
- Sumako Nomura
-  Vice President 1 episode, 2003
                    
- Yukari Tamura
-  Additional Voices 1 episode, 2000
                    
- Eiji Hanawa
-  Additional Voices 1 episode, 2000
                    
- Sayaka Aida
-  Child 1 episode, 2000
                    
- Kyôko Minami
-  Additional Voices 1 episode, 2000
                    
- Fuminori Komatsu
-  Young Man 1 episode, 2003
                    
- Takuo Kawamura
-  Citizen 1 episode, 2003
                    
- Fumio Matsuoka
-  Old Man 1 episode, 2003
                    
- Tony Pope
-  Giseng 1 episode, 1999
                    
- Isshin Chiba
-  Police 1 episode, 2000
                    
- Sachi Matsumoto
-  Additional Voices 1 episode, 2000
                    
- Saori Katô
-  Additional Voices 1 episode, 2000
                    
- Chizuko Minami
-  Additional Voices 1 episode, 2000
                    
- Masanobu Kariya
-  Guard A 1 episode, 2003
                    
- Yumiko Kajiwara
-  Citizen 1 episode, 2003
                    
- Yoshiko Okamoto
-  Additional Voices 1 episode, 2000
                    
- Miki Tsuchiya
-  Citizen 1 episode, 2003
                    
- Fuki Shinomiya
-  Additional Voices 1 episode, 2000
                    
- Ayaka Yamashita
-  Citizen 1 episode, 2003
                    
- Yûko Sasamoto
-  Additional Voices 1 episode, 2000
                    
- Yukie Maeda
-  Citizen 1 episode, 2003
                    
- Bob Papenbrook
-  Roscoe Fitzgerald 1 episode, 2003
                    
- Carol Stanzione
-  Kelly Fitzgerald 1 episode, 2003
                    
- Robert Axelrod
-  Anthony Gauss 1 episode, 1999
                    
- Steve Cassling
-  Oliver 1 episode, 2000
                    
- Simon Prescott
-  Miguel Soldano 2 episodes, 1999
                    
- Kim Strauss
-  R. Frederick O'Reilly 1 episode, 2003
                    
- Michael Lindsay
-  Police 1 episode, 2003
                    
- Fred Sanders
-  Citizen 1 episode, 2003
                    
- Barry Stigler
-  Paul Readerman 1 episode, 1999
                    
- John Snyder
-  Party Host 1 episode, 2000
                    
- Eddie Jones
-  Sam 1 episode, 2003
                    
- Dave Florek
-  Chief Engineer 1 episode, 2003
                    
- Joshua Seth
-  Jeff Meyers 1 episode, 2000
                    
- John Rubinstein
-  Vice President 1 episode, 2003
                    
- Nicholas Guest
-  Army Police 1 episode, 2003
                    
- Alyss Henderson
-  Florist 1 episode, 2003
                    
- Dean Michaels
-  Additional Voices 1 episode, 1999
                    
- Christopher Carroll
-  Forensics 1 episode, 2000
                    
- Stephen Davies
-  Jim McGowen 1 episode, 2003
                    
- Gregory White
-  Storekeeper 1 episode, 2003
                    
- Steven Gilborn
-  Old Man 1 episode, 2003
                    
- Sherry Lynn
-  Tami 1 episode, 2003
                    
- Jad Mager
-  Police 1 episode, 2003
                    
- Susan Hull
-  Citizen 1 episode, 2003
                    
- Debbie Rothstein
-  Additional Voices 1 episode, 2000
                    
- Cheryl Montelle
-  Citizen 1 episode, 2003
                    
- Ethan Thornton
-  Additional Voices unknown episodes
                    
- Kevin Seymour
-  Rene Rigetti / ... (uncredited) 3 episodes, 1999-2000
                    
- Steve Kramer
-  Bonnie Fraser (uncredited) 1 episode, 1999
                    
- Peter Spellos
-  Rick Fraser (uncredited) 1 episode, 1999
                    
- Rafer Weigel
-  Police Officer (uncredited) 1 episode, 2003