• 
  Yuji Uekawa

  regizor

• 
  Dan Green

  Knuckles the Echidna  (35 episodes, 2003-2006)
• 
  Madeleine Blaustein
• 
  Ryo Hirohashi

  Miles 'Tails' Prower (unknown episodes)
• 
  Nobutoshi Kanna

  Knuckles (unknown episodes)
• 
  Sanae Kobayashi

  Chris Thorndyke (76 episodes, 2003-2006)
• 
  Addie Blaustein
• 
  Ted Lewis

  Mr. Thorndyke (unknown episodes)

• 
  Rachael Lillis
• 
  Kayzie Rogers

  Additional Voices (9 episodes, 2003)
• 
  Amy Birnbaum

  Charmy Bee, Cosmo (7 episodes, 2003-2004)
• 
  Darren Dunstan

  Bocoe  (12 episodes, 2003-2006)
• 
  Gregory Abbey

  Sam Speed (12 episodes, 2003-2004)
• 
  Megan Hollingshead

  Rogue the Bat  (12 episodes, 2003-2006)
• 
  Tara Sands

• 
  Christopher Daniel Barnes

  (38 episodes, 2003-2006)
• 
  Jeff Bennett

  (38 episodes, 2003-2006)
• 
  Bob Bergen

  (38 episodes, 2003-2006)
• 
  Rodger Bumpass

  (38 episodes, 2003-2006)
• 
  Corey Burton

  (38 episodes, 2003-2006)
• 
  Cathy Cavadini

  (38 episodes, 2003-2006)
• 
  Cam Clarke

  (38 episodes, 2003-2006)
• 
  Robert Clotworthy

  (38 episodes, 2003-2006)
• 
  Robin Atkin Downes

  (38 episodes, 2003-2006)
• 
  Jennifer Hale

  (38 episodes, 2003-2006)
• 
  Nick Jameson

  (38 episodes, 2003-2006)
• 
  Tony Jay

  (38 episodes, 2003-2006)
• 
  Bob Joles

  (38 episodes, 2003-2006)
• 
  Phil Proctor

  (38 episodes, 2003-2006)
• 
  André Sogliuzzo

  (38 episodes, 2003-2006)
• 
  Audrey Wasilewski

  (38 episodes, 2003-2006)
• 
  Debi Mae West

  (38 episodes, 2003-2006)
• 
  Gary Anthony Williams

  (38 episodes, 2003-2006)
• 
  Adam Wylie

  (38 episodes, 2003-2006)
• 
  Liam O'Brien

  (38 episodes, 2003-2006)
• 
  Katherine Von Till

  (38 episodes, 2003-2006)
• 
  Keith Ferguson

  (38 episodes, 2003-2006)
• 
  Roger Craig Smith

  (38 episodes, 2003-2006)
• 
  Jerry Lobozzo

  Chuck Thorndyke
• 
  Amy Palant

  Miles 'Tails' Prower
• 
  Jason Griffith

  Sonic the Hedgehog
• 
  Jun'ichi Kanemaru

  65 episodes, 2003-2005
• 
  Suzanne Goldish

  Christopher 'Chris' Thorndyke