| 30 | Mike Ayala | 1B | NCAA | 6-2 | 215 | Left | Left | 9/18/1984 | 21 | Harlingen,Texas | | UDFA | | |
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| 17 | Phil Bednar | SS | NCAA | 6-1 | 190 | Right | Right | 5/8/1986 | 20 | Monroe Falls,Ohio | | UDFA | | |
| 10 | Jay Broughton | P | A- | 6-2 | 200 | Right | Right | 11/10/1986 | 19 | Indianapolis,Indiana | 2005 | 47 | 1397 | MIL |
| 4 | Kory Bucklew | P | Ind | 6-2 | 175 | Left | Left | 9/20/1982 | 23 | Fort Campbell,Kentucky | | UDFA | | |
| 41 | Jon Byerly | C | NCAA | 6-3 | 210 | Right | Right | 10/13/1982 | 23 | Dolton,Illinois | | UDFA | | |
| 34 | Ryan Degeeter | P | NCAA | 6-5 | 215 | Right | Right | 11/25/1984 | 21 | Warsaw,Indiana | | UDFA | | |
| 26 | Cory Dragstrem | IF | NCAA | 5-11 | 165 | Right | Right | 5/27/1987 | 19 | Indianapolis,Indiana | | UDFA | | |
| 5 | Kyle Dygert | IF | NCAA | 6-2 | 185 | Left | Right | 7/9/1983 | 22 | Muncie,Indiana | | UDFA | | |
| 3 | Eric Earnhart | SS | Ind | 6-2 | 190 | Left | Right | 11/16/1984 | 21 | Springfield,Ohio | | UDFA | | |
| 2 | Nate Fields | IF | NCAA | 6-0 | 175 | Right | Right | 11/17/1986 | 19 | Evansville,Indiana | | UDFA | | |
| 8 | Richie Fralick | P | NCAA | 6-0 | 190 | Right | Right | 7/18/1984 | 21 | Springfield,Ohio | | UDFA | | |
| 1 | Matt Gard | 2B | NCAA | 6-0 | 165 | Right | Right | 11/27/1983 | 22 | Muncie,Indiana | | UDFA | | |
| 44 | Kyle Heyne | P | A- | 6-5 | 220 | Right | Right | 8/17/1984 | 21 | Coldwater,Ohio | 2008 | 32 | 975 | SD |
| 32 | Luke Jones | C | NCAA | 6-1 | 200 | Right | Right | 1/3/1986 | 20 | Marion,Indiana | | UDFA | | |
| 13 | Brian Meyer | OF | NCAA | 6-3 | 185 | Left | Right | 5/1/1982 | 24 | Wausean,Ohio | | UDFA | | |
| 25 | Jeff Michael | P | Ind | 6-3 | 225 | Right | Right | 7/16/1983 | 22 | Elkhart,Indiana | | UDFA | | |
| 14 | Brad Miller | 1B | A+ | 6-5 | 220 | Right | Right | 6/25/1983 | 23 | Muncie,Indiana | 2006 | 18 | 537 | ARI |
| 43 | Larry Pempek | C | Ind | 5-11 | 180 | Right | Right | 9/28/1986 | 19 | Cedar lake,Indiana | | UDFA | | |
| 29 | Chris Pestle | OF | NCAA | 6-1 | 195 | Right | Right | 10/6/1983 | 22 | Lafayette,Indiana | | UDFA | | |
| 33 | Tyler Pritchard | P | NCAA | 6-4 | 180 | Right | Right | 8/21/1985 | 20 | Cincinnati,Ohio | | UDFA | | |
| 28 | Adam Quinn | P | NCAA | 6-9 | 245 | Right | Right | 11/14/1986 | 19 | Harvey,Illinois | | UDFA | | |
| 11 | Justin Rogers | OF-1B | NCAA | 5-10 | 180 | Left | Left | 4/4/1985 | 21 | Kettering,Ohio | | UDFA | | |
| 35 | Ryan Schmidt | P | NCAA | 6-2 | 205 | Left | Left | 7/23/1986 | 19 | Pocahontas,Arkansas | | UDFA | | |
| 16 | Matt Singleton | C | A+ | 6-3 | 185 | Right | Right | 1/25/1983 | 23 | Fort Wayne,Indiana | 2005 | 33 | 1001 | OAK |
| 7 | Ben Snyder | P | AAA | 6-1 | 175 | Left | Left | 7/20/1985 | 20 | Bellevue,Ohio | 2006 | 4 | 116 | SF |
| 6 | Mike Sullivan | OF | A- | 6-2 | 190 | Left | Right | 12/16/1983 | 22 | Munster,Indiana | 2006 | 31 | 922 | DET |
| 19 | C.J. Webb | IF | NCAA | 6-1 | 200 | Right | Right | 11/20/1983 | 22 | Belleville,Illinois | | UDFA | | |