| ID | Name | Type |
|---|---|---|
| #19814 | Oscarbraindead | - |
| #10636 | Oskar Merker | + |
| #22350 | Oskitone | Z |
| #10637 | Osvaldo Pinali Doederlein | + |
| #10638 | Oszkar Balazs | + |
| #19214 | OtaSoft | P |
| #10639 | Otava | ? |
| #22043 | Ottersoft | P |
| #20450 | Ottfried Schmidt | + |
| #10640 | Otto Adametz | + |
| #21175 | Otto Frederico Pereira de Carvalho Filho | + |
| #10641 | Otto Hausbacher | + |
| #10642 | Otto Stolz | + |
| #22756 | Otto Warnecke | + |
| #10643 | Outland Corp | Z |
| #10644 | Outlaw | Z |
| #15915 | Outlaw Productions | Z |
| #18826 | Outsiders | P |
| #10646 | Owen Bishop | + |
| #10647 | Owen Brown | + |