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List of Hamilton Wildcats “O” Players 1941–1949
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
| O'Hara, Frank | G, HB, T | 39 | 4 (1946–1949) | BRNT |
| Oldenberg, Jim | HB, K | 12 | 1 (1948) | |
| Olszewski, Ed | G | 12 | 2 (1948–1949) | BRNT |
| Otto, Ed | T | 5 | 1 (1948) | |
| Otto, Vic | T | 14 | 2 (1947–1948) | |
| “O” player count: 5 |