Sousuke Sagara / Sosuke Sagara / Sgt. Sousuke Sagara / Sgt. Sagara Sousuke (51 episodes, 2002-2005)
Kaname Chidori (50 episodes, 2002-2005)
Additional Voices / Guen Bien Bo / Helmsman / Maintenance Man A / Fujisaki / Iori Mizuhoshi / Koichi / Vincent Bruno (43 episodes, 2002-2005)
Teletha 'Tessa' Testarossa / Teletha Testarossa / Capt. Teletha Testarossa (34 episodes, 2002-2005)
Kyoko Tokiwa / Kyouko Tokiwa (33 episodes, 2002-2005)
Kurz Weber / Sgt. Kurz Weber (32 episodes, 2002-2005)
Melissa Mao / Sgt. Maj. Melissa Mao (32 episodes, 2002-2005)
Lt. Cmdr. Andrey Kalinin / Andrei Kalinin / Maj. Andrey Kalinin (31 episodes, 2002-2005)
Sousuke Sagara / Sgt. Sousuke Sagara / Sgt. Sagara Sousuke (31 episodes, 2002-2006)
Kaname Chidori / Additional Voices (28 episodes, 2002-2005)
Kyoko Tokiwa / Additional Voices / Shopkeeper's Wife (24 episodes, 2002-2005)
Cmdr. Richard Mardukas / Richard Mardukas (22 episodes, 2002-2005)
Shinji Kazama (21 episodes, 2002-2005)
Teletha Testarossa / Capt. Teletha Testarossa / Additional Voices (20 episodes, 2002-2006)
Melissa Mao / Sgt. Maj. Melissa Mao (19 episodes, 2002-2006)
Kurz Weber / Sgt. Kurz Weber (18 episodes, 2002-2006)
Additional Voices / Issei Tsubaki / Woo / Friday (Mao's A.I.) / Hind Pilot, KGB Subordinate / Barkeep / Hair Stylist / Kumodoshin (17 episodes, 2002-2006)
Eri Kagurazaka / Additional Voices / Eri Kagarazura / Shiori Kudoh (17 episodes, 2002-2005)
Gauron (16 episodes, 2002-2005)
Andrey Kalinin / Maj. Andrey Kalinin (16 episodes, 2002-2006)
Additional Voices / Yang / Alastor / Chinese Shopkeeper / Intelligence Agent, Copilot, Koh, Terrorist A / Kogure / Main Interrogator / Pervert / Subordinate B (14 episodes, 2002-2006)
Gates / Additional Voices / Mr. Fujisaki / Customs Officier, Terrrorist B, Shintaro Kazama, D Sonar Operator, Chairman Daicustra, Additional Voices (14 episodes, 2002-2005)
Richard Mardukas / Al (Sousuke's A.I.) / KGB Branch Chief / Mardukas / Terrorist B / AI (Sousuke's A.I.) / Helmajistani Man (13 episodes, 2002-2006)
Additional Voices / Yu Lan / Ena Saeki / Mayuko / Whispered Girl, Mayuko Uchida (13 episodes, 2002-2005)
Ren Mikihara (12 episodes, 2003)
Atsunobu Hayashimizu / Additional Voices / Wraith (12 episodes, 2003-2005)
Communications Officer / Additional Voices / Principal Tsuboi / Kurz's A.I. (11 episodes, 2003-2005)
Shinji Kazama (10 episodes, 2002-2005)
Yu Fang / Additional Voices (10 episodes, 2005)
Gates (9 episodes, 2005)
Additional Voices / Hunter / Batist (9 episodes, 2002-2005)
Additional Voices / Gates' Subordinate / Gate's Subordinate (9 episodes, 2005-2006)
Additional Voices / Colonel Maress / Interrogator (9 episodes, 2005)
Atsunobu Hayashimizu (8 episodes, 2003)
Xia Yu Fan (8 episodes, 2005)
Xia Yu Lan (8 episodes, 2005)
Ren Mikihara (8 episodes, 2003)
Mizuki Inaba (7 episodes, 2003)
Eri Kagurazaka (7 episodes, 2003)
Kotoro Onodera (6 episodes, 2003)
Leonard Testarossa / Leonard / Fuwa (6 episodes, 2003-2005)
Admiral Voda / Additional Voices (6 episodes, 2005-2006)
Leonard Testarossa (5 episodes, 2005)
Gauron (5 episodes, 2002-2005)
Kotaro Onodera / Additional Voices / Tony (5 episodes, 2003-2005)
Belfangan Clouseau (5 episodes, 2005-2006)
Additional Voices (5 episodes, 2005-2006)
Belfangan Grouseaux (4 episodes, 2005)
Grace 'Gray' Wiseman / Kaki Kansakan (4 episodes, 2002-2005)
Additional Voices (4 episodes, 2005-2006)
Additional Voices / Lost & Found Guy (4 episodes, 2005-2006)
Additional Voices / Lord Mallory / Italian Mobster (4 episodes, 2005)
Bonta-kun (3 episodes, 2003)
Principal Takako Tsuboi (3 episodes, 2003)
Bonta-Kun (3 episodes, 2003)
General Amit (3 episodes, 2005)
Al (2 episodes, 2005)
Friday (2 episodes, 2005)
Maress / Maress Taisa (2 episodes, 2005)
Reporter / Reportor (2 episodes, 2005)
Blue 1 / Sankancho A (2 episodes, 2005)
Gold 2 / Sojuhei A (2 episodes, 2005)
Jackson / Subordinate A (2 episodes, 2002)
Batist (2 episodes, 2002)
Subordinate B (2 episodes, 2002)
Andy (2 episodes, 2002)
Yoko Wakana (2 episodes, 2003)
Additional Voices / Prostitute (2 episodes, 2005)
Additional Voices (2 episodes, 2005)
Fukukan (1 episode, 2005)
Chunen Ishi (1 episode, 2005)
Gebo 4 (1 episode, 2005)
(1 episode, 2005)
Subordinate A (1 episode, 2002)
Andy (1 episode, 2002)
Manami Akagi (1 episode, 2002)
Ryo Kojima, Terrorist C (1 episode, 2002)
Jackson (1 episode, 2002)
Shiro Nanba (1 episode, 2003)
Delinquent B (1 episode, 2003)
Masatami Hyuga (1 episode, 2003)
Wraith (1 episode, 2005)
Additional Voices (1 episode, 2005)
Kaname's Stalker (1 episode, 2005)
First Daughter (unknown episodes)
John Danigan, Additional Voices (unknown episodes)
Zaied, Additional Voices (unknown episodes)
Mizuki Inaba, Additional Voices (unknown episodes)
Seina (unknown episodes)
Additional Voices (unknown episodes)
Lifeguard (unknown episodes)
Bunker Hill Captain, Venom A.I., Additional Voices (unknown episodes)
Maya Mukai (unknown episodes)
Skipper (unknown episodes)