- Unshô Ishizuka
- Â Narrator / ... 15 episodes, 2001-2004
- Mike Pollock
- Â Narrator / ... 17 episodes, 2000-2004
- Eric Stuart
- Â Butch / ... 14 episodes, 2000-2004
- Kayzie Rogers
- Â Azumarill / ... 16 episodes, 2000-2004
- Michael Haigney
- Â Muk / ... 12 episodes, 2000-2004
- Satomi Kôrogi
- Â Pichu Little / ... 6 episodes, 2000-2004
- Ted Lewis
- Â Tracey Sketchit / ... 11 episodes, 2000-2004
- Madeleine Blaustein
- Â Meowth / ... 11 episodes, 2001-2004
- James Carter Cathcart
- Â Dr. Namba / ... 10 episodes, 2002-2004
- Rachael Lillis
- Â Misty / ... 10 episodes, 2001-2004
- Dan Green
- Â Eugene / ... 10 episodes, 2001-2004
- Rikako Aikawa
- Â Koduck / ... 6 episodes, 2001-2004
- Andi Whaley
- Â Cassidy 7 episodes, 2003-2004
- Katsuyuki Konishi
- Â Houndour / ... 5 episodes, 2000-2004
- Yûji Ueda
- Â Elekid / ... 4 episodes, 2001-2004
- Takehito Koyasu
- Â Kosaburo 7 episodes, 2003-2004
- Tomokazu Seki
- Â Kenji 7 episodes, 2003-2004
- Masako Katsuki
- Â Yamato 7 episodes, 2003-2004
- Tony Salerno
- Â Aerodactyl / ... 5 episodes, 2002-2004
- Erica Schroeder
- Â Nurse Joy / ... 6 episodes, 2001-2003
- Veronica Taylor
- Â Hun / ... 6 episodes, 2001-2003
- Yumi Tôma
- Â Pichu Big / ... 6 episodes, 2000-2003
- Shin'ichirô Miki
- Â Beedrill / ... 4 episodes, 2001-2004
- Inuko Inuyama
- Â Nyarth 6 episodes, 2002-2003
- Gregory Abbey
- Â Construction Workers / ... 5 episodes, 2002-2003
- Daisuke Sakaguchi
- Â Junichi / ... 5 episodes, 2001-2004
- Megumi Hayashibara
- Â Fushigidane / ... 5 episodes, 2002-2003
- Mika Kanai
- Â Bayleef / ... 2 episodes, 2003-2004
- Lisa Ortiz
- Â Daisy / ... 4 episodes, 2002-2004
- Stuart Zagnit
- Â Professor Oak 4 episodes, 2003-2004
- Oliver Wyman
- Â Construction Worker 1 / ... 3 episodes, 2002-2003
- Sean Schemmel
- Â Jimmy / ... 4 episodes, 2001-2002
- Marc Thompson
- Â Attila / ... 4 episodes, 2001-2002
- Mayumi Izuka
- Â Kasumi 4 episodes, 2002-2004
- Ichirô Nagai
- Â Dr. Namba 4 episodes, 2003-2004
- Kenji Nojima
- Â Kenta 3 episodes, 2001
- Kazusa Murai
- Â Marina 3 episodes, 2001
- Wayne Grayson
- Â Georgio / ... 3 episodes, 2003-2004
- Matt Hoverman
- Â Corey Demario / ... 3 episodes, 2002-2004
- Suzanne Goldish
- Â Audience / ... 3 episodes, 2003-2004
- Amy Palant
- Â Billy / ... 3 episodes, 2002-2004
- Kerry Williams
- Â Casey / ... 3 episodes, 2003-2004
- Andrew Rannells
- Â Forrest / ... 3 episodes, 2001-2002
- Corey James
- Â Kudo / ... 3 episodes, 2001-2003
- Mayumi Shintani
- Â Wooper 3 episodes, 2000-2003
- Sebastian Arcelus
- Â Vincent 3 episodes, 2001
- Susumu Chiba
- Â Typhlosion 3 episodes, 2001
- Caren Manuel
- Â Marina 3 episodes, 2001
- Ikue Ôtani
- Â Starmie / ... 1 episode, 2002-2004
- Yuriko Yamaguchi
- Â Joi 3 episodes, 2002-2003
- Minami Takayama
- Â Hiroshi 3 episodes, 2003-2004
- Rei Sakuma
- Â Sakura 3 episodes, 2003-2004
- Chinami Nishimura
- Â Waninoko / ... 3 episodes, 2003
- Suzy Myers Jackson
- Â Audience / ... 2 episodes, 2002
- Lee Quick
- Â Officer Jenny 2 episodes, 2001-2003
- Darren Dunstan
- Â Wani-Wani 2 episodes, 2001
- Rica Matsumoto
- Â Persian / ... 1 episode, 2002-2003
- Makoto Tsumura
- Â Chan Bruce / ... 2 episodes, 2002-2003
- Machiko Toyoshima
- Â Tattu 2 episodes, 2002-2003
- Nîna Kumagaya
- Â Nanako 2 episodes, 2003-2004
- Masami Toyoshima
- Â Hanako 2 episodes, 2003
- Amy Birnbaum
- Â DJ Mary 1 episode, 2003
- Jonathan Boggs
- Â Sailor 1 episode, 2004
- Carol Jacobanis
- Â Lola 1 episode, 2002
- Carrie Keranen
- Â Dora 1 episode, 2004
- Britton Herring
- Â Ted 1 episode, 2004
- Scott Rayow
- Â Silver 1 episode, 2004
- Matthew J. Nichols
- Â Electabuzz Team Player 1 / ... 1 episode, 2004
- Lindsay Sullivan
- Â Benny Demario 1 episode, 2004
- Christopher Collet
- Â Kinso 1 episode, 2003
- Jerry Lobozzo
- Â Murkrow 1 episode, 2000
- Paul Liberti
- Â Professor Elm 1 episode, 2001
- Akiko Suzuki
- Â Raichu 1 episode, 2001
- Romi Park
- Â Jiro 1 episode, 2002
- Chô
- Â Dr. Brown 1 episode, 2002
- Takaya Hashi
- Â Muno 1 episode, 2002
- Yûko Minaguchi
- Â Rose 1 episode, 2002
- Mako Hyôdô
- Â Mizuho 1 episode, 2002
- Yûgo Takahashi
- Â Rin Bruce 1 episode, 2002
- Makoto Higo
- Â Shan Bruce 1 episode, 2002
- Shannon Chan-Kent
- Â Starmie 1 episode, 2003
- Noriko Hidaka
- Â Hajime 1 episode, 2003
- Norio Wakamoto
- Â Kinzoh 1 episode, 2003
- Hirotaka Suzuoki
- Â Sakaki 1 episode, 2003
- Seizô Katô
- Â Viper 1 episode, 2003
- Mariko Kôda
- Â Sakura 1 episode, 2003
- Atsuko Enomoto
- Â Atsuko Enomoto 1 episode, 2003
- Takayuki Yamaguchi
- Â Jubei 1 episode, 2003
- Chie Satô
- Â Masae 1 episode, 2003
- Yûko Kaida
- Â Dr. Kobara 1 episode, 2004
- Nobutoshi Canna
- Â Tsuyoshi 1 episode, 2004
- Fujiko Takimoto
- Â Kanta 1 episode, 2004
- Yûko Kobayashi
- Â Shigeru Okido 1 episode, 2004
- Kyôko Hikami
- Â Loverine 1 episode, 2004
- Masuo Amada
- Â Silver 1 episode, 2004
- Toshiyuki Morikawa
- Â Bashou unknown episodes
- Kazuhiko Inoue
- Â Narration / ... unknown episodes
- Nobuyuki Hiyama
- Â Buson unknown episodes
- Matt Mitler
- Â Additional Voices unknown episodes
- Ryôka Yuzuki
- Â Mauma unknown episodes
- Shinji Kawada
- Â Minaki unknown episodes
- Yuka Komatsu
- Â Ladyba unknown episodes
- Kaori
- Â Haruka unknown episodes
- Daiki Nakamura
- Â Scientist unknown episodes
- Hidetoshi Nakamura
- Â Dr. Shiranui unknown episodes
- Ayako Shiraishi
- Â Joy unknown episodes
- Kelly Davis
- Â Marina unknown episodes
- Toshikazu Fukawa
- Â Kudo unknown episodes
- Tara Sands
- Â Ritchie / ... (uncredited) 8 episodes, 2000-2004
- Kôichi Sakaguchi
- Â Arbok (uncredited) 1 episode, 2002
- Kazuko Sugiyama
- Â Celebi (uncredited) 1 episode, 2003
- Hiroshi Ôtake
- Â Mankey (uncredited) 1 episode, 2003
