or
Player positions provided by the CFL and errors are known to exist
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
|---|---|---|---|---|
| O'Brien, Danny | QB | 45 | 3 (2014–2016) | BC, EDM |
| Omara, Ron | LB | 8 | 1 (2017) | BC, HAM |
| Onyeka, Kene | DL | 6 | 1 (2019) | |
| Oramasionwu, Don | DL | 0 | 1 (2018) | EDM, MTL, WPG |
| Orange, Anthony | DB | 2 | 1 (2017) | BC, EDM, TOR |
| “O” player count: 5 | ||||