- Matthew Labyorteaux
- Â Jaden Yuki / ... 180 episodes, 2004-2008
- Wayne Grayson
- Â Syrus Truesdale / ... 118 episodes, 2004-2007
- Tony Salerno
- Â Chazz Princeton / ... 83 episodes, 2004-2006
- Sean Schemmel
- Â Vellian Crowler / ... 80 episodes, 2004-2007
- David Wills
- Â Tyranno Hassleberry / ... 70 episodes, 2004-2007
- Kanako Irie
- Â Johan Anderson 73 episodes, 2006-2008
- Eric Stuart
- Â Bastion Misawa / ... 66 episodes, 2004-2007
- Christie Moreau
- Â Alexis Rhodes 55 episodes, 2005-2007
- Marc Thompson
- Â Chazz Princeton / ... 51 episodes, 2004-2007
- Emlyn Elisabeth Morinelli
- Â Alexis Rhodes 52 episodes, 2005-2007
- Ted Lewis
- Â Chumley Huffington / ... 51 episodes, 2004-2006
- Scott Rayow
- Â Zane Truesdale / ... 51 episodes, 2004-2007
- Christopher Collet
- Â Conklin / ... 43 episodes, 2004-2006
- Lisa Ortiz
- Â Ms. Dorothy / ... 42 episodes, 2004-2006
- Madeleine Blaustein
- Â Sartorius / ... 39 episodes, 2004-2007
- Suzanne Goldish
- Â Jasmine / ... 31 episodes, 2004-2006
- Erica Schroeder
- Â Sarina / ... 30 episodes, 2004-2006
- Darren Dunstan
- Â Maximillion Pegasus / ... 28 episodes, 2004-2007
- Oliver Wyman
- Â Aster Phoenix / ... 27 episodes, 2005-2007
- Cassandra Lee Morris
- Â Yubel / ... 25 episodes, 2006-2007
- Priscilla Everett
- Â Alexis Rhodes 23 episodes, 2004-2005
- Clay Adams
- Â Tyranno Hassleberry / ... 23 episodes, 2005-2007
- Mike Pollock
- Â Jean-Louis Bonaparte / ... 21 episodes, 2004-2007
- Jason Griffith
- Â Atticus Rhodes / ... 21 episodes, 2005-2007
- Kerry Williams
- Â Sadie / ... 20 episodes, 2004-2005
- Takehito Koyasu
- Â Takuma Saiou 16 episodes, 2005-2006
- Gregory Abbey
- Â Damon / ... 14 episodes, 2004-2006
- Samira Fernandes
- Â Alexis rhodes 13 episodes, 2008
- Jonathan Todd Ross
- Â Slade Princeton / ... 9 episodes, 2004-2005
- Liza Jacqueline
- Â Blair Flannigan / ... 9 episodes, 2005-2007
- Duane Cooper
- Â Axel Brodie 9 episodes, 2006-2007
- Veronica Taylor
- Â Crystal Beast Amethyst Cat / ... 5 episodes, 2005-2007
- Erik Singer
- Â Jim Crocodile Cook 8 episodes, 2006-2007
- Matt Hoverman
- Â Student 5 6 episodes, 2005
- Tom Wayland
- Â Abidos the Third / ... 4 episodes, 2005-2006
- Jamie McGonnigal
- Â Skilled Dark Magician / ... 4 episodes, 2007
- Marc Diraison
- Â Chancellor Foster 3 episodes, 2005
- Kathleen Delaney
- Â Tania 3 episodes, 2005-2007
- Andrew Rannells
- Â Belowski / ... 3 episodes, 2005-2006
- Dan Green
- Â Guardian of the Labyrinth / ... 3 episodes, 2005-2007
- David Moo
- Â Gravekeeper's Chief 2 episodes, 2005
- Cliff Gulibert
- Â Kyle 2 episodes, 2005
- Maki Saito
-  Téa Gardner 1 episode, 2008
- Shunsuke Kazama
- Â Yami Yugi / ... 1 episode, 2008
- Trevor Forsman
- Â Chick the Yellow 1 episode, 2005
- Sebastian Arcelus
- Â Marcel Bonaparte 1 episode, 2007
- Brian Maillard
- Â Gerard (uncredited) 2 episodes, 2005
- Michael Sinterniklaas
- Â Torrey (uncredited) 1 episode, 2005
- Jesse Hooker
- Â Blaze (uncredited) 1 episode, 2006