PAGE  1
000 B000000 12/31/2008
000 C000000 809559
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 TCW STRATEGIC INCOME FUND, INC.
001 B000000 811-49800
001 C000000 8778294768
002 A000000 865 SOUTH FIGUEROA STREET
002 B000000 LOS ANGELES
002 C000000 CA
002 D010000 90017
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 N
007 B000000  0
007 C010100  1
008 A000001 TCW INVESTMENT MANAGEMENT COMPANY
008 B000001 A
008 C000001 801-29075
008 D010001 LOS ANGELES
008 D020001 CA
008 D030001 90017
010 A000001 STATE STREET BANK & TRUST COMPANY
010 B000001 85-11329
010 C010001 BOSTON
010 C020001 MA
010 C030001 02116
012 A000001 BNY MELLON SHAREOWNER SERVICES
012 B000001 85-05006
012 C010001 NEW YORK
012 C020001 NY
012 C030001 10277
012 C040001 0770
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 LOS ANGELES
013 B020001 CA
013 B030001 90071
014 A000001 COWEN & COMPANY, LLC
014 B000001 8-22522
014 A000002 NEWEDGE USA LLC
014 B000002 8-47023
014 A000003 FIMAT PREFERRED LLC
014 B000003 8-66946
014 A000004 SG AMERICAS SECURITIES, LLC
      PAGE  2
014 B000004 8-66125
014 A000005 TCW FUNDS DISTRIBUTOR
014 B000005 8-31114
015 A000001 STATE STREET BANK & TRUST COMPANY
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02116
015 E010001 X
018  000000 Y
019 A000000 N
019 B000000    0
020 A000001 MORGAN STANLEY & CO., INC.
020 B000001 13-2655998
020 C000001      6
020 A000002 LEHMAN BROTHERS, INC.
020 B000002 13-2518466
020 C000002      3
020 A000003 INSTINET GROUP, INC.
020 B000003 13-4134098
020 C000003      2
020 A000004 CREDIT SUISSE GROUP
020 B000004 13-5659485
020 C000004      1
020 A000005 GOLDMAN SACHS, & CO.
020 B000005 13-5108880
020 C000005      1
020 A000006 MERRILL LYNCH & CO., INC
020 B000006 13-5674085
020 C000006      1
020 A000007 BARCLAYS CAPITAL INC.
020 B000007 06-1031656
020 C000007      1
020 A000008 BUCKINGHAM RESEARCH GROUP
020 B000008 13-3134008
020 C000008      1
020 A000009 SOLEIL SECURITIES
020 B000009 04-3724222
020 C000009      1
020 A000010 DEUTSCHE BANK
020 B000010 13-2730828
020 C000010      1
021  000000       25
022 A000001 STATE STREET BANK & TRUST CO.
022 B000001 04-2899840
022 C000001    559325
022 D000001       354
022 A000002 DEUTSCHE BANK
022 B000002 13-2730828
022 C000002     42223
022 D000002     55451
      PAGE  3
022 A000003 J.P. MORGAN CHASE & CO., INC.
022 B000003 13-3224016
022 C000003     28583
022 D000003     22293
022 A000004 GOLDMAN SACHS, & CO.
022 B000004 13-5108880
022 C000004     20244
022 D000004      7034
022 A000005 UBS AG
022 B000005 13-3873456
022 C000005     10797
022 D000005         0
022 A000006 PERSHING LLC
022 B000006 13-2741729
022 C000006      9524
022 D000006         0
022 A000007 CREDIT SUISSE GROUP
022 B000007 13-5659485
022 C000007      8958
022 D000007         0
022 A000008 BANK OF AMERICA CORP.
022 B000008 56-2058405
022 C000008      5857
022 D000008      2539
022 A000009 BARCLAYS CAPITAL INC.
022 B000009 06-1031656
022 C000009      6329
022 D000009         0
022 A000010 AMHERST SECURITIES GROUP
022 B000010 76-0651103
022 C000010      5957
022 D000010         0
023 C000000     719153
023 D000000      92985
024  000000 Y
025 A000001 STATE STREET BANK & TRUST CO.
025 B000001 04-2899840
025 C000001 D
025 D000001   16936
025 A000002 CREDIT SUISSE GROUP
025 B000002 13-5659485
025 C000002 D
025 D000002    5865
025 A000003 J.P. MORGAN CHASE & CO., INC.
025 B000003 13-3224016
025 C000003 D
025 D000003    5618
025 A000004 MORGAN STANLEY & CO., INC.
025 B000004 13-2655998
025 C000004 D
025 D000004    2323
      PAGE  4
025 A000005 BANK OF AMERICA CORP.
025 B000005 56-2058405
025 C000005 D
025 D000005    2128
025 A000006 BANK OF AMERICA CORP.
025 B000006 56-2058405
025 C000006 E
025 D000006     754
025 A000007 J.P. MORGAN CHASE & CO., INC.
025 B000007 13-3224016
025 C000007 E
025 D000007     177
026 A000000 N
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 N
028 A010000         0
028 A020000         0
028 A030000         0
028 A040000         0
028 B010000         0
028 B020000         0
028 B030000         0
028 B040000         0
028 C010000         0
028 C020000         0
028 C030000         0
028 C040000         0
028 D010000         0
028 D020000         0
028 D030000         0
028 D040000         0
028 E010000         0
028 E020000         0
028 E030000         0
028 E040000         0
028 F010000         0
028 F020000         0
028 F030000         0
028 F040000         0
028 G010000         0
028 G020000         0
028 G030000         0
028 G040000         0
028 H000000         0
      PAGE  5
030 A000000      0
030 B000000  0.00
030 C000000  0.00
031 A000000      0
031 B000000      0
032  000000      0
033  000000      0
035  000000      0
036 B000000      0
038  000000      0
042 A000000   0
042 B000000   0
042 C000000   0
042 D000000   0
042 E000000   0
042 F000000   0
042 G000000   0
042 H000000   0
043  000000      0
044  000000      0
045  000000 Y
046  000000 N
047  000000 Y
048  000000  0.000
048 A010000   100000
048 A020000 0.750
048 B010000        0
048 B020000 0.000
048 C010000        0
048 C020000 0.000
048 D010000        0
048 D020000 0.000
048 E010000        0
048 E020000 0.000
048 F010000        0
048 F020000 0.000
048 G010000        0
048 G020000 0.000
048 H010000        0
048 H020000 0.000
048 I010000        0
048 I020000 0.000
048 J010000        0
048 J020000 0.000
048 K010000   100000
048 K020000 0.500
049  000000 N
050  000000 N
051  000000 N
052  000000 N
053 A000000 N
      PAGE  6
054 A000000 Y
054 B000000 N
054 C000000 N
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
054 O000000 N
055 A000000 Y
055 B000000 Y
056  000000 Y
057  000000 N
058 A000000 N
059  000000 Y
060 A000000 Y
060 B000000 Y
061  000000        0
062 A000000 Y
062 B000000   0.0
062 C000000   0.0
062 D000000   9.8
062 E000000   0.0
062 F000000   0.0
062 G000000   0.0
062 H000000   0.0
062 I000000   0.0
062 J000000   0.0
062 K000000   0.0
062 L000000   0.0
062 M000000   0.0
062 N000000  69.2
062 O000000   0.0
062 P000000   4.4
062 Q000000  48.0
062 R000000   6.0
063 A000000   0
063 B000000 13.9
064 A000000 N
064 B000000 Y
065  000000 N
066 A000000 N
067  000000 N
068 A000000 N
068 B000000 N
      PAGE  7
069  000000 N
070 A010000 Y
070 A020000 Y
070 B010000 Y
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 Y
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 Y
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 Y
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 N
070 N010000 Y
070 N020000 Y
070 O010000 Y
070 O020000 Y
070 P010000 N
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 Y
070 R020000 N
071 A000000    163924
071 B000000    101263
071 C000000    238620
071 D000000   42
072 A000000 12
072 B000000    25765
072 C000000     2590
072 D000000        0
072 E000000        0
072 F000000     1478
072 G000000       67
072 H000000        0
072 I000000       45
072 J000000       29
      PAGE  8
072 K000000        0
072 L000000       58
072 M000000       96
072 N000000        0
072 O000000        0
072 P000000     1253
072 Q000000       25
072 R000000      111
072 S000000       87
072 T000000        0
072 U000000        0
072 V000000        0
072 W000000      142
072 X000000     3391
072 Y000000        0
072 Z000000    24964
072AA000000    24685
072BB000000    78354
072CC010000    16903
072CC020000        0
072DD010000    18092
072DD020000        0
072EE000000        0
073 A010000   0.3800
073 A020000   0.0000
073 B000000   0.0000
073 C000000   0.0000
074 A000000        0
074 B000000    16936
074 C000000        0
074 D000000   210918
074 E000000     5749
074 F000000     4675
074 G000000        0
074 H000000        0
074 I000000        0
074 J000000      416
074 K000000        0
074 L000000     1883
074 M000000        0
074 N000000   240577
074 O000000        0
074 P000000      143
074 Q000000        0
074 R010000        0
074 R020000        0
074 R030000        0
074 R040000    67026
074 S000000        0
074 T000000   173408
074 U010000    47610
      PAGE  9
074 U020000        0
074 V010000     3.64
074 V020000     0.00
074 W000000   0.0000
074 X000000     1237
074 Y000000        0
075 A000000        0
075 B000000   192245
076  000000     3.07
077 A000000 Y
077 B000000 Y
078  000000 N
080 A000000 National Union Fire Insurance Company
080 C000000    80000
081 A000000 Y
081 B000000   1
082 A000000 Y
082 B000000       10
083 A000000 N
083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
085 B000000 N
086 A010000      0
086 A020000      0
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
087 A010000 COMMON STOCK
087 A020000 872340104
087 A030000 TSI
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 N
SIGNATURE   DAVID S. DEVITO
TITLE       TREASURER