- Neil Kaplan
- Â Optimus Prime 39 episodes, 2000
- Daniel Riordan
- Â Megatron / ... 39 episodes, 2000
- Jason Spisak
- Â Koji Onishi 39 episodes, 2000
- Peter Spellos
- Â Sky-Byte 39 episodes, 2000
- Sandy Fox
- Â T-AI 39 episodes, 2000
- Steve Blum
- Â Darkscream 39 episodes, 2000
- Philece Sampler
- Â Kelly 39 episodes, 2000
- Wankus
- Â Prowl 39 episodes, 2000
- David Lodge
- Â Midnight Run / ... 38 episodes, 2000
- Wally Wingert
- Â Side Burn 39 episodes, 2000
- Jerry DeCapua
- Â Gas Skunk 39 episodes, 2000
- Keith Diamond
- Â Rapid Run 39 episodes, 2000
- Bob Joles
- Â X-Brawn 39 episodes, 2000
- Peter Lurie
- Â Slapper 39 episodes, 2000
- Mike Reynolds
- Â Railspike 39 episodes, 2000
- Hiroki Takahashi
- Â Build Hurricane / ... 39 episodes, 2000
- Taiten Kusunoki
- Â Black Convoy 39 episodes, 2000
- Takashi Matsuyama
- Â God Magnus 39 episodes, 2000
- Eiji Takemoto
- Â Art Fire / ... 39 episodes, 2000
- Ryô Naitô
- Â Counter Arrow / ... 39 episodes, 2000
- Masami Iwasaki
- Â Build Cyclone / ... 39 episodes, 2000
- Norio Imamura
- Â Gaskunk 39 episodes, 2000
- Chieko Higuchi
- Â Ai-chan / ... 39 episodes, 2000
- Akiko Kimura
- Â Yuuki Onishi / ... 39 episodes, 2000
- Satoshi Hashimoto
- Â Fire Convoy / ... 39 episodes, 2000
- Takayuki Kondô
- Â Mach Alert 39 episodes, 2000
- Hisashi Izumi
- Â J-Five / ... 39 episodes, 2000
- Yoshikazu Nagano
- Â Build Typhoon 39 episodes, 2000
- Riki Kitazawa
- Â Greejeeber / ... 39 episodes, 2000
- Harî Kaneko
- Â Baldigus / ... 39 episodes, 2000
- Junichi Miura
- Â X Car 39 episodes, 2000
- Masao Harada
- Â Heptor / ... 39 episodes, 2000
- Osuke Yoda
- Â Ox 39 episodes, 2000
- Masayuki Kiyama
- Â Brave Maximus / ... 39 episodes, 2000
- Hitoshi Nishimura
- Â Indy Heat 39 episodes, 2000
- Chôtomi Nimura
- Â Eagle Killer 39 episodes, 2000
- Yôichi Kobiyama
- Â Devil Gigatron / ... 39 episodes, 2000
- Yûki Tamaki
- Â Build Boy / ... 39 episodes, 2000
- Masahiro Shibahara
- Â Wild Ride 39 episodes, 2000
- Konta
- Â Gelshark 39 episodes, 2000
- Hidenori Konda
- Â Shuttlor 39 episodes, 2000
- Punch Ufo
- Â Speedbreaker 39 episodes, 2000
- Naomi Matamura
- Â J-Four 39 episodes, 2000
- Daran Norris
- Â Heavy Load 38 episodes, 2000
- Barry Stigler
- Â Scourge 38 episodes, 2000
- Kim Strauss
- Â Ultra Magnus 38 episodes, 2000
- Robert Axelrod
- Â Movor 38 episodes, 2000
- Michael McConnohie
- Â Hot Shot / ... 19 episodes, 2000
- Dan Woren
- Â Crosswise / ... 19 episodes, 2000
- Kirk Thornton
- Â Dr. Kenneth Onishi / ... 18 episodes, 2000
- Steve Kramer
- Â R.E.V. / ... 18 episodes, 2000
- Michael Reisz
- Â Landfill / ... 18 episodes, 2000
- Michael Lindsay
- Â Skid-Z / ... 18 episodes, 2000
- Tom Wyner
- Â Grimlock 18 episodes, 2000
- Bob Papenbrook
- Â Mega-Octane 18 episodes, 2000
- Mariko Nagahama
- Â Reporter / ... 15 episodes, 2000
- Joe Ochman
- Â Hightower 13 episodes, 2000
- Joshua Seth
- Â Carl / ... 9 episodes, 2000
- Tifanie Christun
- Â Dorie Dutton 4 episodes, 2000
- Colleen O'Shaughnessey
- Â Jenny 3 episodes, 2000
- Richard Epcar
- Â Armorhide 3 episodes, 2000
- Lex Lang
- Â Tow Line 3 episodes, 2000
- Mami Fukai
- Â Miki 3 episodes, 2000
- Tony Oliver
- Â Married Man / ... 2 episodes, 2000
- Eisuke Yoda
- Â Ox 2 episodes, 2000
- Brianne Brozey
- Â Additional Voices 1 episode, 2000
- Simon Prescott
- Â Dr. Hikasye 1 episode, 2000
- Hiroshi Shimozaki
- Â Dr. Yoshimoto 1 episode, 2000