| 33 | Joshua Alliston | P | AAA | 6-5 | 230 | Right | Right | 2/29/1980 | 23 | Torrance,California | 2002 | 21 | 619 | MIL |
|
| 30 | Jason Baker | P | A | 6-0 | 200 | Right | Right | 9/18/1980 | 22 | Washington,DC | 2002 | 31 | 919 | MIL |
| 14 | Khalid Ballouli | P | AA | 6-2 | 190 | Right | Right | 3/20/1980 | 23 | Charlotte,North Carolina | 2002 | 6 | 169 | MIL |
| 31 | Timothy Bausher | P | AAA | 6-4 | 205 | Right | Right | 4/23/1979 | 24 | Pottstown,Pennsylvania | 2001 | 27 | 819 | SEA |
| 3 | Kennard Bibbs | OF | AAA | 5-9 | 160 | Left | Left | 3/5/1980 | 23 | Houston,Texas | 2002 | 14 | 409 | MIL |
| 24 | Keith Bohanan | IF | A | 6-2 | 190 | Right | Right | 3/25/1981 | 22 | San Jose,California | 2002 | 23 | 679 | MIL |
| 19 | Craig Breslow | P | MLB | 6-1 | 180 | Left | Left | 8/8/1980 | 22 | New Haven,Connecticut | 2002 | 26 | 769 | MIL |
| 16 | Calvin Carpenter | P | A | 6-2 | 190 | Right | Right | 9/23/1982 | 20 | Pineville,Louisiana | 2001 | 6 | 178 | MIL |
| 11 | Nic Carter | OF | A | 6-3 | 190 | Right | Right | 9/17/1980 | 22 | Parkersburg,West Virginia | 2002 | 4 | 109 | MIL |
| 2 | Callix Crabbe | 2B | MLB | 5-8 | 190 | Both | Right | 2/14/1983 | 20 | St. Thomas,Virgin Islands | 2002 | 12 | 349 | MIL |
| 24 | Mark Ernster | 3B | AA | 6-0 | 190 | Right | Right | 12/10/1977 | 25 | Phoenix,Arizona | 1999 | 6 | 184 | MIL |
| 23 | Pedro Esparragoza | C | A | 5-11 | 165 | Right | Right | 3/16/1982 | 21 | Caracas,Venezuela | 1999 | UDFA | | MIL |
| 20 | Jeffrey Eure | 1B | AA | 6-1 | 200 | Left | Left | 8/17/1980 | 22 | Sunbury,Pennsylvania | 2001 | 18 | 538 | MIL |
| 34 | Prince Fielder | 1B | MLB | 5-11 | 280 | Left | Right | 5/9/1984 | 19 | Ontario,California | 2002 | 1 | 7 | MIL |
| 15 | Justin Gabriel | P | A | 5-9 | 160 | Right | Right | 3/2/1979 | 24 | Bremerton,Washington | 2002 | 30 | 889 | MIL |
| 1 | Tony Gwynn | CF-LF | MLB | 6-0 | 185 | Left | Right | 10/4/1982 | 20 | Long Beach,California | 2003 | 2 | 39 | MIL |
| 21 | Bo Hall | P | AAA | 6-0 | 180 | Right | Right | 9/5/1980 | 22 | Daytona Beach,Florida | 2002 | 19 | 559 | MIL |
| 28 | Adam Heether | LF-3B | AAA | 6-0 | 200 | Right | Right | 1/14/1982 | 21 | Castro Valley,California | 2003 | 11 | 309 | MIL |
| 27 | Eric Henderson | P | A+ | 6-4 | 210 | Left | Left | 9/5/1979 | 23 | Winter Park,Florida | 2000 | 4 | 111 | MIL |
| 25 | Travis Hinton | OF | A+ | 6-1 | 210 | Left | Left | 11/21/1980 | 22 | Phoenix,Arizona | 2001 | 13 | 388 | MIL |
| 12 | Jeff Housman | P | AAA | 6-3 | 180 | Left | Left | 8/4/1981 | 21 | Visalia,California | 2002 | 33 | 979 | MIL |
| 35 | Jon Huizinga | P | A | 6-3 | 220 | Right | Right | 10/16/1979 | 23 | Grand Rapids,Michigan | 2003 | UDFA | | MIL |
| - | Forrest Martin | P | A+ | 6-2 | 190 | Right | Right | 1/8/1980 | 23 | Albuquerque,New Mexico | 2003 | UDFA | | MIL |
| 18 | Mario Mendez | OF | A+ | 6-0 | 170 | Both | Right | 8/21/1981 | 21 | Las Barias,Dominican Republic | 1998 | UDFA | | MIL |
| 35 | Gabriel Mendoza | P | A | 6-2 | 160 | Left | Left | 1/13/1982 | 21 | Varinitas,Venezuela | 1998 | UDFA | | MIL |
| 6 | Steve Moss | OF | AAA | 6-2 | 180 | Right | Right | 1/12/1984 | 19 | Los Angeles,California | 2002 | 29 | 859 | MIL |
| 11 | Joshua Murray | SS | A+ | 6-2 | 180 | Right | Right | 8/12/1984 | 18 | Syracuse,New York | 2002 | 2 | 48 | MIL |
| 26 | Manny Parra | P | MLB | 6-3 | 200 | Left | Left | 10/30/1982 | 20 | Sacramento,California | 2001 | 26 | 778 | MIL |
| 32 | Luis Pena | P | AAA | 6-5 | 160 | Right | Right | 1/10/1983 | 20 | La Victoria,Venezuela | 1999 | UDFA | | MIL |
| 22 | Dennis Sarfate | P | MLB | 6-4 | 210 | Right | Right | 4/9/1981 | 22 | Queens,New York | 2001 | 9 | 268 | MIL |
| - | Jon Steitz | P | A | 6-3 | 210 | Right | Right | 9/5/1980 | 22 | New Haven,Connecticut | 2001 | 3 | 88 | MIL |
| 17 | Charles Terni | SS | A | 5-10 | 170 | Right | Right | 10/1/1978 | 24 | Norwich,Connecticut | 1997 | 13 | 401 | BOS |
| 29 | Ryan Trytten | P | AAA | 6-3 | 204 | Right | Right | 5/10/1981 | 22 | Albert Lea,Minnesota | 2000 | 39 | 1161 | MIL |
| 5 | John Vanden Berg | C | AA | 6-2 | 210 | Right | Right | 2/5/1980 | 23 | Cedarburg,Wisconsin | 2002 | 25 | 739 | MIL |
| - | Rickie Weeks | 2B | MLB | 6-0 | 195 | Right | Right | 9/13/1982 | 20 | Daytona Beach,Florida | 2003 | 1 | 2 | MIL |
| 9 | Tom Wilhelmsen | P | MLB | 6-6 | 190 | Right | Right | 12/16/1983 | 19 | Tucson,Arizona | 2002 | 7 | 199 | MIL |