*Primary Characters
| Yugi Moto | Yami (Yugioh) | Joey Wheeler |
| Tristan Taylor | Tea Gardner | Seto Kaiba |
| Bakura Ryou | Yami Bakura |
Secondary Characters
Supporting/Arc Specific Characters
| Bandit Keith | Mako Tsunami | Bones and gang |
| Espa Roba | Arkana | Rare Hunters |
| Noah Kaiba | Gosoboro Kaiba | Big 5 |
| Dartz | Varon | Raphael |
| Alester | Leon Wilson (Von Schroeder) | Zigfreid Loyd (Von Schroeder) |
| Vivian |
Supporting Characters (Past)
| Seto | Isis | Mahad |
| Aknadin | Shada | Shimon |
Note: All ages are given from the beginning of the series - in full. Remember, it started a year before the dub starts. Battle City takes place about 2 years after that. Ages of new characters are given for the episode in which they first appeared.
* I chose the primary characters based on their appearance in the close up sequences on the English dub during the theme song. (You know, where it shows all of Yugi's friends...) Characters belonging primarily to a single arc (such as Pegasus and Marik) were not eligible. Duke, Serenity, and Mai may move to the primary characters section depending on the importance/frequency of their involvement in the next arc.