| Position & Years with Mets | Player | Years with Nationals |
| C, 2008-09 | |
| OF, 2008-09 | |
| OF, 1998 | |
| C, 2001 | |
| UT, 1996-98 | |
| OF, 2006-08 | |
| P, 2009 | |
| P, 2008 | |
| OF, 2013 | |
| P, 2008 | |
| P, 2003-04 | |
| P, 2008 | |
| P, 2001 | |
| P, 2012 | |
| UT, 2005, 2007-09 | |
| | Position & Years with Mets | Player | Years with Nationals |
| OF, 2001 | |
| P, 2002-03 | |
| P, 2011 | |
| P, 2002-03 | |
| P, 2009 | |
| OF, 2011 | |
| OF, 2006-07 | |
| C, 2006-07 | |
| 2B, 2005-07, 2009 | |
| P, 2007-08 | |
| P, 2011-12 | |
| P, 2002 | |
| UT, 2009-10 | |
| OF, 2013 | |
| OF, 2006 | |
|