Lou Williams has the most career games by a player off the bench, with 1,001 games.

most games played off the bench by an nba player

Interpreted as:

most regular-season games played off the bench by an NBA player

NAME	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Lou Williams	1,001	23.0	13.4	2.1	3.3	0.8	0.2	1.6	4.3	10.4	41.6	1.2	3.5	35.0	3.5	4.2	84.0	22,982	13,396	2,097	3,262	810	160	1,619	1,248	+1017
Dell Curry	984	20.7	11.3	2.3	1.7	0.9	0.2	1.2	4.5	10.0	45.6	1.1	2.8	40.3	1.1	1.3	85.2	20,378	11,147	2,302	1,682	843	201	1,145	1,571	+133
Jamal Crawford	894	25.3	12.6	1.8	2.8	0.8	0.2	1.6	4.4	10.6	41.2	1.4	4.1	34.4	2.4	2.8	86.5	22,611	11,279	1,621	2,497	674	158	1,445	1,188	+10
Steve Kerr	880	17.5	5.8	1.1	1.8	0.5	0.0	0.5	2.2	4.6	47.6	0.8	1.7	45.1	0.7	0.8	86.7	15,385	5,143	999	1,544	457	38	471	824	+683
Antoine Carr	819	17.9	8.1	3.0	1.0	0.3	0.8	1.1	3.2	6.4	49.8	0.0	0.0	16.2	1.7	2.1	78.1	14,661	6,595	2,494	809	267	662	888	2,416	+23
Kyle Korver	809	21.6	8.9	2.4	1.4	0.5	0.3	0.9	3.1	7.0	43.5	1.7	4.1	41.7	1.1	1.2	88.1	17,469	7,204	1,973	1,095	426	212	728	1,554	+1539
Jon Barry	785	16.2	5.5	1.8	2.1	0.8	0.1	1.0	1.9	4.3	43.5	0.8	2.0	39.2	1.0	1.2	85.5	12,699	4,348	1,389	1,643	662	105	750	949	+1036
Patty Mills	780	18.7	8.3	1.6	2.1	0.6	0.1	0.9	3.0	6.9	42.9	1.6	4.0	39.1	0.8	0.9	85.5	14,593	6,505	1,219	1,620	475	56	714	971	+1690
Joe Kleine	761	12.9	3.9	3.5	0.5	0.2	0.2	0.7	1.6	3.5	44.7	0.0	0.1	29.5	0.7	0.9	78.6	9,793	2,960	2,630	404	174	178	532	1,362	-201
Leandro Barbosa	738	20.0	10.0	1.9	1.9	0.7	0.1	1.1	3.8	8.3	45.7	1.0	2.7	38.1	1.4	1.7	82.1	14,759	7,383	1,383	1,388	512	94	806	1,294	+323
Nick Collison	733	18.4	5.0	4.4	1.0	0.5	0.5	0.9	2.1	3.9	53.7	0.0	0.1	22.1	0.8	1.2	70.9	13,490	3,699	3,245	736	342	344	624	1,916	+1499
Jason Terry	731	24.1	10.3	1.7	2.6	0.9	0.2	1.2	3.7	8.6	43.6	1.4	3.8	36.9	1.4	1.6	85.2	17,648	7,523	1,267	1,903	674	139	908	1,076	+1051
Danny Ferry	731	16.7	5.9	2.5	1.1	0.4	0.3	0.8	2.3	5.2	44.1	0.5	1.4	39.2	0.8	0.9	84.7	12,199	4,319	1,839	820	258	212	588	1,437	+522
Malik Rose	728	15.4	5.7	3.9	0.8	0.6	0.4	1.2	2.1	4.7	43.5	0.0	0.1	15.8	1.6	2.2	74.0	11,233	4,185	2,849	556	425	255	888	1,647	+353
J.J. Barea	723	18.3	8.4	2.0	3.7	0.4	0.0	1.5	3.2	7.6	41.8	0.9	2.6	33.9	1.1	1.4	79.5	13,250	6,044	1,438	2,707	273	15	1,057	1,003	+90
Eddie Johnson	720	22.5	13.3	3.2	1.6				5.2	11.3	46.1	0.5			2.3	2.7	85.1	16,190	9,569	2,300	1,156				1,521	-32
Danny Schayes	711	15.3	5.8	3.9	0.9				1.9	4.1	47.4	0.0			1.9	2.4	79.4	10,887	4,090	2,754	616				1,866	+11
Manu Ginobili	708	23.1	11.7	3.2	3.5	1.2	0.3	1.9	3.9	8.7	44.3	1.3	3.6	36.7	2.7	3.3	82.2	16,346	8,278	2,239	2,509	843	202	1,358	1,412	+3154
Ricky Pierce	700	22.1	13.6	2.2	1.7				5.1	10.3	49.3	0.3			3.2	3.7	86.6	15,439	9,513	1,511	1,155				1,533	-196
Thurl Bailey	699	25.2	12.4	4.7	1.3	0.4	1.1	1.4	4.9	10.5	47.1	0.0	0.0	10.3	2.6	3.2	81.0	17,616	8,695	3,316	896	305	778	1,013	1,262	+20
Jud Buechler	691	11.1	3.2	1.7	0.7	0.4	0.2	0.4	1.3	2.9	43.5	0.4	1.0	36.7	0.2	0.4	63.3	7,645	2,178	1,152	514	286	132	276	681	+115
Eddie House	686	16.6	7.2	1.6	1.5	0.6	0.1	0.8	2.8	6.8	40.9	1.1	2.9	39.0	0.5	0.6	85.6	11,401	4,959	1,118	1,005	418	51	521	856	+305
Matt Bonner	680	15.7	5.5	2.8	0.6	0.3	0.3	0.4	2.1	4.5	46.3	0.9	2.3	41.7	0.4	0.6	77.8	10,663	3,747	1,885	436	229	174	244	1,054	+1121
Vinnie Johnson	678	22.9	11.6	2.8	3.0				4.8	10.6	45.3	0.1			1.9	2.7	72.7	15,512	7,860	1,915	2,057				1,339
Scott Brooks	673	13.3	4.8	1.0	2.3	0.7	0.0	0.6	1.8	4.0	45.0	0.4	1.1	37.6	0.8	1.0	84.7	8,966	3,233	665	1,548	467	29	437	806	-11