| # | Player Name | Pos | Age | B | T | Ht | Wt | Born | Place | High Level | mlbYears | Salary |
| 56 | Luis Ayala | P | 30 | R | R | 6-2 | 170 | 1/12/1978 | Los Mochis,Mexico | MLB | 2003-2011 | 1,700,000 |
| 40 | Collin Balester | P | 22 | R | R | 6-5 | 190 | 6/6/1986 | Huntington Beach,California | MLB | 2008-2011 | min |
| 10 | Ronnie Belliard | 2B | 31 | R | R | 5-8 | 180 | 7/4/1976 | Bronx,New York | MLB | 1998-2010 | 1,600,000 |
| 57 | Jay Bergmann | P | 26 | R | R | 6-4 | 185 | 9/25/1981 | Neptune,New Jersey | MLB | 2005-2010 | 404,000 |
| 7,2 | Rogearvin Bernadina | OF | 24 | L | L | 6-0 | 170 | 6/12/1984 | Curacao,Netherlands | MLB | 2008-2011 | min |
| 6,7 | Emilio Bonifacio | 2B | 23 | R | R | 5-10 | 160 | 4/23/1985 | Santo Domingo,Dominican Republic | MLB | 2007-2011 | min |
| 8 | Aaron Boone | 3B | 35 | R | R | 6-2 | 200 | 3/9/1973 | La Mesa,California | MLB | 1997-2009 | 1,000,000 |
| 5 | Kory Casto | OF | 26 | L | R | 6-0 | 190 | 12/8/1981 | Salem,Oregon | MLB | 2007-2008 | min |
| 47 | Matt Chico | P | 25 | L | L | 5-11 | 190 | 6/10/1983 | Fullerton,California | MLB | 2007-2010 | 409,000 |
| 19 | Tyler Clippard | P | 23 | R | R | 6-3 | 170 | 2/14/1985 | Lexington,Kentucky | MLB | 2007-2011 | min |
| 43 | Jesus Colome | P | 29 | R | R | 6-2 | 170 | 3/23/1979 | San Pedro de Macoris,Dominican Republic | MLB | 2001-2010 | 1,250,000 |
| 32 | Chad Cordero | P | 26 | R | R | 6-0 | 195 | 3/18/1982 | Upland,California | MLB | 2003-2010 | 6,200,000 |
| 34 | Elijah Dukes | CF | 24 | R | R | 6-2 | 220 | 6/26/1984 | Homestead,Florida | MLB | 2007-2009 | 392,500 |
| 55 | Johnny Estrada | C | 32 | B | R | 5-11 | 195 | 6/27/1976 | Hayward,California | MLB | 2001-2008 | 1,250,000 |
| 23 | Marco Estrada | P | 24 | R | R | 6-0 | 180 | 7/5/1983 | Sonora,Mexico | MLB | 2008-2011 | min |
| 3 | Jesus Flores | C | 23 | R | R | 6-1 | 180 | 10/26/1984 | Carupano,Venezuela | MLB | 2007-2011 | 400,000 |
| 12 | Alberto Gonzalez | SS | 25 | R | R | 5-11 | 160 | 4/18/1983 | Barquisimeto,Venezuela | MLB | 2007-2011 | min |
| 15 | Cristian Guzman | SS | 30 | B | R | 6-0 | 188 | 3/21/1978 | Santo Domingo,Dominican Republic | MLB | 1999-2010 | 4,200,000 |
| 38 | Joel Hanrahan | P | 26 | R | R | 6-2 | 191 | 10/6/1981 | Des Moines,Iowa | MLB | 2007-2011 | 400,000 |
| 1 | Willie Harris | 2B-CF | 30 | L | R | 5-9 | 175 | 6/22/1978 | Cairo,Georgia | MLB | 2001-2011 | 800,000 |
| 6 | Anderson Hernandez | SS | 25 | B | R | 5-9 | 150 | 10/30/1982 | Santo Domingo,Dominican Republic | MLB | 2005-2010 | min |
| 41 | Shawn Hill | P | 27 | R | R | 6-2 | 185 | 4/28/1981 | Mississauga,Ontario | MLB | 2004-2010 | 402,000 |
| 58 | Mike Hinckley | P | 25 | R | L | 6-3 | 170 | 10/5/1982 | Oklahoma City,Oklahoma | MLB | 2008-2009 | min |
| 24 | Nick Johnson | 1B | 29 | L | L | 6-3 | 195 | 9/19/1978 | Sacramento,California | MLB | 2001-2010 | 5,500,000 |
| 25 | Austin Kearns | RF-CF | 28 | R | R | 6-3 | 220 | 5/20/1980 | Lexington,Kentucky | MLB | 2002-2011 | 5,000,000 |
| 36 | Ray King | P | 34 | L | L | 6-1 | 230 | 1/15/1974 | Chicago,Illinois | MLB | 1999-2008 | 850,000 |
| 29 | Ryan Langerhans | RF-LF | 28 | L | L | 6-3 | 195 | 2/20/1980 | San Antonio,Texas | MLB | 2002-2011 | min |
| 31 | John Lannan | P | 23 | L | L | 6-5 | 200 | 9/27/1984 | Long Beach,New York | MLB | 2007-2011 | min |
| 16 | Paul LoDuca | C | 36 | R | R | 5-10 | 185 | 4/12/1972 | Brooklyn,New York | MLB | 1998-2008 | 5,000,000 |
| 2 | Felipe Lopez | SS-3B | 28 | B | R | 6-1 | 175 | 5/12/1980 | Bayamon,Puerto Rico | MLB | 2001-2011 | 4,900,000 |
| 12 | Rob Mackowiak | RF-3B | 32 | L | R | 5-10 | 168 | 6/20/1976 | Oak Lawn,Illinois | MLB | 2001-2008 | 1,500,000 |
| 36 | Charlie Manning | P | 29 | L | L | 6-2 | 180 | 3/31/1979 | Winter Haven,Florida | MLB | 2008-2008 | min |
| 51 | Shairon Martis | P | 21 | R | R | 6-1 | 175 | 3/30/1987 | Willemstad,Curacao | MLB | 2008-2009 | min |
| 44 | Lastings Milledge | OF | 23 | R | R | 6-1 | 180 | 4/5/1985 | Bradenton,Florida | MLB | 2006-2011 | 402,500 |
| 50 | Garrett Mock | P | 25 | R | R | 6-4 | 215 | 4/25/1983 | Houston,Texas | MLB | 2008-2010 | min |
| 23 | Luke Montz | C | 24 | R | R | 6-2 | 205 | 7/7/1983 | Lafayette,Louisiana | MLB | 2008-2008 | min |
| 53 | Wil Nieves | C | 30 | R | R | 5-11 | 190 | 9/25/1977 | San Juan,Puerto Rico | MLB | 2002-2011 | min |
| 54 | Mike O'Connor | P | 27 | L | L | 6-3 | 170 | 8/17/1980 | Dallas,Texas | MLB | 2006-2011 | min |
| 4 | Pete Orr | SS | 29 | L | R | 6-1 | 175 | 6/8/1979 | Richmond Hill,Ontario | MLB | 2005-2011 | min |
| 26 | Wily Mo Pena | CF-RF | 26 | R | R | 6-3 | 215 | 1/13/1982 | Lagunda Salada,Dominican Republic | MLB | 2002-2011 | 2,000,000 |
| 49,45 | Odalis Perez | P | 30 | L | L | 6-0 | 150 | 6/7/1978 | Las Matas de Farfan,Dominican Republic | MLB | 1998-2008 | 850,000 |
| 51 | Jon Rauch | P | 29 | R | R | 6-11 | 255 | 9/27/1978 | Louisville,Kentucky | MLB | 2002-2011 | 1,200,000 |
| 17 | Tim Redding | P | 30 | R | R | 6-0 | 215 | 2/12/1978 | Rochester,New York | MLB | 2001-2009 | 1,000,000 |
| 52 | Saul Rivera | P | 30 | R | R | 5-11 | 155 | 12/7/1977 | San Juan,Puerto Rico | MLB | 2006-2010 | 436,000 |
| 22 | Brian Sanches | P | 29 | R | R | 6-0 | 190 | 8/8/1978 | Beaumont,Texas | MLB | 2006-2011 | min |
| 45,49 | Chris Schroder | P | 29 | R | R | 6-3 | 210 | 8/20/1978 | Okarche,Oklahoma | MLB | 2006-2008 | min |
| 59 | Steven Shell | P | 25 | R | R | 6-5 | 195 | 3/10/1983 | Longview,Texas | MLB | 2008-2009 | min |
| 37 | Levale Speigner | P | 27 | R | R | 5-11 | 165 | 9/24/1980 | Thomasville,Georgia | MLB | 2007-2008 | min |
| 21 | Dmitri Young | LF-1B | 34 | B | R | 6-2 | 235 | 10/11/1973 | Vicksburg,Mississippi | MLB | 1996-2008 | 5,000,000 |
| 11 | Ryan Zimmerman | 3B | 23 | R | R | 6-2 | 210 | 9/28/1984 | Washington,North Carolina | MLB | 2005-2011 | 465,000 |