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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| O'Quinslean, Jeff | SS | Free Agent | 32 | 01/06/1986 | Tualatin | USA | Right | Right | 6' 0" | 192 lbs | - |
| Ocasio, Edgar | CF | Seattle Rainiers | 20 | 04/06/1998 | Farmington | USA | Left | Right | 6' 2" | 185 lbs | - |
| Olsen, Lester | SS | Lloydminster Lynx | 21 | 12/31/1997 | New York | USA | Switch | Right | 6' 2" | 220 lbs | - |
| Olvera, Tomás | MR | Lloydminster Lynx | 24 | 09/06/1994 | Greatwood | USA | Right | Right | 6' 1" | 205 lbs | - |
| Ortega, Carlos | MR | Free Agent | 24 | 01/01/1994 | Statesville | USA | Right | Right | 6' 0" | 230 lbs | - |
| Ortega, Octávio | SP | Saskatoon Smokin' Guns | 22 | 05/11/1996 | Brentwood | USA | Right | Right | 6' 1" | 235 lbs | - |
| Ortíz, Manuel | MR | Jasper Cougars | 22 | 07/31/1996 | Culiacan | MEX | Right | Right | 6' 4" | 215 lbs | - |
| Ortíz, Roberto | MR | Free Agent | 29 | 09/01/1989 | Managua | NCA | Right | Right | 6' 4" | 235 lbs | - |
| Osborne, Gary | C | Free Agent | 21 | 07/27/1997 | Oklahoma City | USA | Right | Right | 6' 0" | 185 lbs | - |
| Ovies, Tomás | 1B | Surrey Sinners | 22 | 12/16/1996 | Atenco | MEX | Right | Right | 6' 2" | 175 lbs | - |
| Owens, Johnny | 1B | Free Agent | 24 | 03/04/1994 | Thermalito | USA | Right | Right | 6' 0" | 205 lbs | - |
