The 2003 roster for the Astros included Wade Miller at pitcher, Brad Ausmus at catcher, Jeff Bagwell at first baseman, Jeff Kent at second baseman and Geoff Blum at third baseman.

	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	Brad Ausmus B. Ausmus	C	5'11"	190	4/14/1969	34	New Haven, CT
2	Jeff Bagwell J. Bagwell	1B	6'0"	215	5/27/1968	35	Boston, MA
3	Lance Berkman L. Berkman	OF	6'1"	220	2/10/1976	27	Waco, TX
4	Craig Biggio C. Biggio	OF	5'11"	185	12/14/1965	37	Smithtown, NY
5	Nate Bland N. Bland	P	6'5"	210	12/27/1974	28	Birmingham, AL
6	Geoff Blum G. Blum	3B	6'3"	220	4/26/1973	30	Redwood City, CA
7	Eric Bruntlett E. Bruntlett	SS	6'2"	200	3/29/1978	25	Lafayette, IN
8	Kirk Bullinger K. Bullinger	P	6'0"	170	10/28/1969	33	New Orleans, LA
9	Raul Chavez R. Chavez	C	5'11"	245	3/17/1973	30	Valencia, Venezuela
10	Bruce Chen B. Chen	P	6'2"	215	6/19/1977	26	Panama City, Panama
11	Tripp Cromer T. Cromer	2B	6'2"	165	11/21/1967	35	Lake City, SC
12	Octavio Dotel O. Dotel	P	6'0"	230	11/25/1973	29	Santo Domingo, Dominican Republic
13	Morgan Ensberg M. Ensberg	3B	6'2"	220	8/26/1975	27	Redondo Beach, CA
14	Adam Everett A. Everett	SS	6'0"	180	2/5/1977	26	Austell, GA
15	Jared Fernandez J. Fernandez	P	6'1"	235	2/2/1972	31	Salt Lake City, UT
16	Mike Gallo M. Gallo	P	6'0"	175	4/2/1977	26	Long Beach, CA
17	Richard Hidalgo R. Hidalgo	OF	6'3"	220	6/28/1975	28	Caracas, Venezuela
18	Brian L. Hunter B. L. Hunter	OF	6'3"	180	3/25/1971	32	Portland, OR
19	Jonathan Johnson J. Johnson	P	6'0"	180	7/16/1974	28	La Grange, GA
20	Jeff Kent J. Kent	2B	6'2"	210	3/7/1968	35	Bellflower, CA
21	Jason Lane J. Lane	OF	6'2"	225	12/22/1976	26	Santa Rosa, CA
22	Brad Lidge B. Lidge	P	6'5"	210	12/23/1976	26	Sacramento, CA
23	Scott Linebrink S. Linebrink	P	6'3"	220	8/4/1976	26	Austin, TX
24	Julio Lugo J. Lugo	SS	6'1"	175	11/16/1975	27	Barahona, Dominican Republic
25	David Matranga D. Matranga	2B	6'0"	185	1/8/1977	26	Orange, CA