Characters
Characters from the original Yu-Gi-Oh! series
- Yugi Moto (武藤 遊戯 Mutō Yūgi)
- Katsuya Jonouchi (城之内 克也 Jōnouchi Katsuya) / Joey Wheeler
- Anzu Mazaki (真崎 杏子 Mazaki Anzu) / Téa Gardner
- Hiroto Honda (本田 ヒロト Honda Hiroto) / Tristan Taylor
- Sugoroku Muto (武藤 双六 Mutō Sugoroku) / Solomon Moto
- Shadi (シャーディー Shādī)
Characters exclusive to Yu-Gi-Oh! Capsule Monsters
- Dr. Alexander "Alex" Brisbane
- Alexander the Great
Capsule Monsters
Yugi's Monsters:- Celtic Guardian (obtained in episode 1)
- Hinotama Soul (obtained in episode 2)
- Kuriboh (obtained in episode 4)
- Dark Magician (obtained in episode 4, evolved in episode 8)
- Magician of Black Chaos (evolved from Dark Magician in episode 8)
- Black Luster Soldier (obtained in episode 9)
- Blue-Eyes White Dragon (fused with temporarily in episode 10)
