• 
  David Lodge

  Midnight Run / Midnight Express
• 
  Robert Axelrod

  Movor
• 
  Peter Spellos

  Sky-Byte
• 
  Steve Blum

  Darkscream
• 
  Hidenori Konda

  Shuttlor
• 
  Philece Sampler

  Kelly
• 
  Sandy Fox

  T-AI
• 
  Dan Woren

  Crosswise

• 
  Jerry DeCapua

  Gas Skunk
• 
  Keith Diamond

  Rapid Run
• 
  Chôtomi Nimura

  Eagle Killer
• 
  Daran Norris

  Heavy Load
• 
  Masao Harada

   Heptor / ... (39 episodes, 2000)
• 
  Chieko Higuchi

  Ai-chan
• 
  Norio Imamura

  Gaskunk

• 
  Masami Iwasaki

  Build Cyclone
• 
  Shôji Izumi

  J-Five
• 
  Bob Joles

  X-Brawn
• 
  Akiko Kimura

  Yuuki Onishi
• 
  Riki Kitazawa

   Greejeeber / ... (39 episodes, 2000)
• 
  Masayuki Kiyama

  Brave Maximus
• 
  Yôichi Kobiyama

   Devil Gigatron / ... (39 episodes, 2000)
• 
  Takayuki Kondô

  Mach Alert
• 
  Konta

  Gelshark
• 
  Steve Kramer

  R.E.V.
• 
  Tom Wyner

  Grimlock
• 
  Peter Lee

  Slapper
• 
  Michael Lindsay

  Skid-Z
• 
  Naomi Matamura

  J-Four
• 
  Michael McConnohie

  Hot Shot
• 
  Mike Reynolds

  Railspike
• 
  Junichi Miura

  X Car
• 
  Yoshikazu Nagano

  Build Typhoon
• 
  Ryô Naitô

  Counter Arrow
• 
  Bob Papenbrook

  Mega-Octane
• 
  Michael Reisz

  Landfill
• 
  Daniel Riordan

  Megatron
• 
  Masahiro Shibahara

  Wild Ride
• 
  Barry Stigler

  Scourge
• 
  Kim Strauss

  Ultra Magnus
• 
  Eiji Takemoto

   Art Fire / ... (39 episodes, 2000)
• 
  Yuki Tamaki

  Build Boy
• 
  Kirk Thornton

  Dr. Kenneth Onishi
• 
  Punch Ufo

  Speedbreaker
• 
  Wally Wingert

  Side Burn
• 
  Jason Spisak

  Koji Onishi
• 
  Satoshi Hashimoto

  Fire Convoy
• 
  Hari Kaneko

   Baldigus / ... (39 episodes, 2000)
• 
  Osuke Yoda

  Ox
• 
  Neil Kaplan

  Optimus Prime
• 
  Taiten Kusunoki

  39 episodes, 2000
• 
  Takashi Matsuyama

  39 episodes, 2000
• 
  Hitoshi Nishimura

  39 episodes, 2000
• 
  Hiroki Takahashi

  39 episodes, 2000
• 
  Wankus

  Prowl