Showing 50 of 723 characters starting with "O"
| Name | Media | Appearances |
|---|---|---|
| Orderly | 1 | 1 |
| Oreste Jacovacci | 1 | 1 |
| Organization hitman | 1 | 1 |
| Orin | 1 | 1 |
| Orin Hanner, Sr. | 1 | 2 |
| Orin Kerr | 1 | 1 |
| Oriol | 1 | 3 |
| Orlando | 3 | 6 |
| Orloff | 1 | 2 |
| Orlovskiy Sr. | 1 | 1 |
| Ornano | 1 | 1 |
| Oroshiya | 1 | 1 |
| Orozco | 1 | 2 |
| Orrin Sackett | 1 | 2 |
| Orrin Sanderson | 1 | 1 |
| Orry Main | 2 | 8 |
| Orso | 2 | 2 |
| Ortega | 4 | 7 |
| Ortiz 's henchman | 1 | 2 |
| Ortiz's henchman | 1 | 4 |
| Orville "Rick" Wright | 3 | 18 |
| Orville Beecham | 1 | 1 |
| Osborne | 1 | 1 |
| Osbourne Cox | 1 | 1 |
| Oscar | 6 | 14 |
| Oscar "El Oso" Ramos | 1 | 2 |
| Oscar Boneau | 1 | 1 |
| Oscar Diaz | 1 | 1 |
| Oscar Duarte | 1 | 1 |
| Oscar Finch | 1 | 1 |
| Oscar Markov | 1 | 1 |
| Oscar Rosewood | 1 | 2 |
| Oscar Verdanken | 1 | 3 |
| Oscar Wallace | 1 | 2 |
| Osceola | 1 | 2 |
| Oseaca | 2 | 3 |
| Oshima | 1 | 1 |
| Osip Byankin | 1 | 1 |
| Osip Shelekhes | 1 | 1 |
| Osip Zaburunnyy | 1 | 2 |
| Osiris Amanpour | 2 | 2 |
| Osito | 1 | 1 |
| Oskar Reinhardt | 4 | 10 |
| Oskol | 1 | 2 |
| Osman | 2 | 2 |
| Osmund Bates | 1 | 6 |
| Ostap Bulba | 1 | 1 |
| Ostap Korneevich | 1 | 3 |
| Ostroff | 1 | 2 |
| Osvalds Kreizis | 1 | 1 |