O
 Antoine Ozanam (1) |
Bruno Olivieri (1) |
| Bryan Lee O'Malley (1) |
Dennis O'Neil (1) |
| Eiichiro Oda (1) |
Jerry Ordway (1) |
| Katsuhiro Otomo (1) |
Kevin O'Neill (1) |
| Obion (2) |
| Antoine Ozanam (1) |
Bruno Olivieri (1) |
| Bryan Lee O'Malley (1) |
Dennis O'Neil (1) |
| Eiichiro Oda (1) |
Jerry Ordway (1) |
| Katsuhiro Otomo (1) |
Kevin O'Neill (1) |
| Obion (2) |