Brad Ausmus has the most career games by an Astros catcher, with 1,259 games.

Interpreted as:

astros most regular-season games as catcher

	NAME	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Brad Ausmus B. Ausmus	1,259	3,950	415	970	162	19	41	386	396	38	629	51	25	4,464	1,293	222	54	26	52	143	.246	.318	.327	.646	393	-155.2	.288	69	-175.6
2	Alan Ashby A. Ashby	965	2,926	282	736	136	8	69	388	323	7	435	3	3	3,311	1,095	213	19	36	54	85	.252	.324	.374	.698	351	-25.6	.310	97	-10.3
3	Jason Castro J. Castro	717	2,245	268	513	123	9	71	236	248	19	715	6	2	2,533	867	203	6	15	10	46	.229	.309	.386	.695	269	-16.9	.306	93	-20.2
4	Johnny Edwards J. Edwards	634	1,970	181	466	82	19	25	199	210	7	244	8	7	2,217	661	126	13	17	59	36	.237	.310	.336	.645	192	-44.1	.287	78	-57.3
5	Tony Eusebio T. Eusebio	598	1,739	179	479	87	5	30	241	182	15	324	1	5	1,955	666	122	3	16	15	53	.275	.346	.383	.729	231	-16.8	.324	94	-13.9
6	John Bateman J. Bateman	565	1,802	139	411	71	10	45	212	102	20	361	1	3	1,956	637	126	12	20	45	69	.228	.274	.353	.628	159	-40.6	.273	77	-48.6
7	Craig Biggio C. Biggio	483	1,667	210	454	74	9	24	153	162	11	243	71	21	1,870	618	107	21	9	14	21	.272	.339	.371	.710	215	7.7	.322	106	11.7
8	Martín Maldonado M. Maldonado	469	1,406	167	268	46	2	58	163	142	18	484	1	0	1,589	492	106	19	4	1	34	.191	.273	.350	.623	138	-52.9	.275	74	-49.7
9	Humberto Quintero H. Quintero	344	980	72	229	41	2	13	82	31	13	213	1	0	1,035	313	56	9	2	7	35	.234	.266	.319	.585	66	-55.1	.258	54	-58.1
10	Mark Bailey M. Bailey	322	916	100	204	36	1	23	97	163	3	213	2	5	1,090	311	60	3	5	23	34	.223	.340	.340	.680	115	-8.8	.308	97	-4.1
11	Yainer Diaz Y. Diaz	321	1,206	150	338	60	4	48	174	45	9	233	2	1	1,275	550	112	0	15	1	39	.280	.307	.456	.764	164	13.5	.326	112	17.8
12	Luis Pujols L. Pujols	311	844	50	162	27	6	6	80	52	2	164	1	3	916	219	39	12	6	11	26	.192	.239	.259	.498	35	-66.4	.224	41	-61.1
13	Ron Brand R. Brand	300	810	68	187	18	4	2	69	60	12	75	15	8	897	219	24	12	3	12	30	.231	.293	.270	.563	62	-30.4	.255	64	-36
14	Scott Servais S. Servais	295	856	71	193	48	1	21	106	58	15	140	0	1	954	306	70	18	7	6	23	.225	.284	.357	.642	81	-32.3	.285	75	-29.1
15	Milt May M. May	238	791	76	210	32	5	11	106	65	1	74	1	3	872	285	48	7	8	11	16	.265	.319	.360	.679	88	-7	.309	93	-7.1
16	Eddie Taubensee E. Taubensee	203	595	49	139	26	1	14	70	52	2	125	3	1	653	209	41	1	3	8	13	.234	.296	.351	.647	58	-16.4	.290	81	-14.7
17	Carlos Corporan C. Corporan	198	593	52	133	21	1	17	63	38	15	165	0	1	658	207	39	6	6	5	13	.224	.285	.349	.634	55	-17.5	.280	75	-19.2
18	Cliff Johnson C. Johnson	196	493	62	112	25	3	20	78	97	7	104	0	1	600	203	48	0	3	7	14	.227	.360	.412	.772	82	18	.357	126	17.6
19	Skip Jutze S. Jutze	191	476	34	100	10	3	0	31	26	1	58	1	1	517	116	13	10	4	5	19	.210	.250	.244	.494	21	-35.4	.227	39	-35.8
20	Joe Ferguson J. Ferguson	183	571	79	139	26	3	23	83	122	1	109	6	2	702	240	52	3	5	13	17	.243	.375	.420	.795	98	18.1	.355	125	21.3
21	Alex Trevino A. Trevino	179	393	37	99	27	1	5	39	37	6	58	5	3	444	143	33	5	3	5	13	.252	.323	.364	.687	47	-1.4	.310	101	0
22	Brian McCann B. McCann	160	538	69	124	15	1	25	85	57	13	98	1	1	615	216	41	0	7	3	16	.230	.315	.401	.717	69	-4.5	.310	96	-3.2
23	Max Stassi M. Stassi	160	383	44	83	17	0	12	40	37	7	128	0	0	429	136	29	1	1	0	10	.217	.297	.355	.652	41	-10.2	.288	83	-9.6
24	J.R. Towles	155	428	40	80	22	0	11	50	37	11	95	0	1	484	135	33	5	3	4	10	.187	.267	.315	.583	32	-24.8	.260	55	-26.1
25	Ed Herrmann E. Herrmann	151	459	22	104	16	0	4	42	40	5	61	1	1	515	132	20	7	4	4	10	.227	.293	.288	.581	38	-18.4	.270	70	-17.4