A Duel Ghoul, known as a Duel Zombie in the Japanese version, is a person who is stripped of their free will and thoughts after having their energy drained with a Bio-Band via dueling. They were used as the main force of the Martin Empire by Yubel. When a person is defeated by a Duel Ghoul, their Bio-Band drains their energy and they fall. They then become a Duel Ghoul themselves. Bio-Bands are ineffective against Duel Ghouls themselves, as they have no energy left to drain.
Appearance-wise, the eyes of Duel Ghouls have no pupils and there is dark shading under their eyes. Duel Ghouls tend to have their heads hunched over and tilted.
Those turned into Duel Ghouls include Chazz Princeton, Syrus Truesdale, Fonda Fontaine, Dr. Vellian Crowler, Jean-Louis Bonaparte Ishiki Erishi and the Blue Berets.
After Jaden Yuki defeated the Yubel posseted Marcel Bonaparte all the Duel Ghols returned to normall.
Duels[]
| Opponent(s) | Episode(s) | Outcome |
|---|---|---|
| Various Duel Academy Students | 122 | Win |
| Ishiki Erishi | 122 | Win (off-screen) |
| Beauregard | 122 | Win (off-screen) |
| Chazz Princeton | 122 | Lose |
| Chazz Princeton | 122 | Lose |
| Chazz Princeton | 122 | Not shown |
| Jaden Yuki | 122 | No Result |
| Syrus Truesdale | 122 | Not shown |
| Fonda Fontaine | 123 | Lose |
| Jaden Yuki, Jesse Anderson, and Axel Brodie | 123 | Not Shown |
| Adrian Gecko | 123 | Lose |
| Jim Crocodile Cook | 123 | Lose |
| Fonda Fontaine | 123 | Not Shown |
| Axel Brodie | 123 | Not shown (offscreen) |
| Jim Crocodile Cook | 123 | Not shown |
| Three Masked Knights | 126 | Win |
| Jaden Yuki | 127 | No Result (with Syrus Truesdale) |
| Blue Berets | 127 | Not Shown (off-screen) |
| Vellian Crowler | 127 | Not Shown (off-screen) |
| Axel Brodie and Tyranno Hassleberry | 128 | Not Shown |
| Jean-Louis Bonaparte | 128 | Not Shown (offscreen) |
| Jim Crocodile Cook | 129 | Not Shown |
| Tyranno Hassleberry, Bastion Misawa, Alexis Rhodes, and Jim Crocodile Cook | 129 | DRAW |