This page contains a listing of all known appearances of Mattie Harcourt (New Earth).
If you find an Issue this Character appears in that is not shown here, please edit that issue adding "Mattie Harcourt (New Earth)" as a Cast member.
If you find an Issue this Character appears in that is not shown here, please edit that issue adding "Mattie Harcourt (New Earth)" as a Cast member.
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- Supergirl Vol 4 1
- Supergirl Vol 4 2
- Supergirl Vol 4 3
- Supergirl Vol 4 4
- Supergirl Vol 4 5
- Supergirl Vol 4 9
- Supergirl Vol 4 10
- Supergirl Vol 4 11
- Supergirl Vol 4 12
- Supergirl Vol 4 14
- Supergirl Vol 4 15
- Supergirl Vol 4 16
- Supergirl Vol 4 17
- Supergirl Vol 4 18
- Supergirl Vol 4 19
- Supergirl Vol 4 22
- Supergirl Vol 4 23
- Supergirl Vol 4 25
- Supergirl Vol 4 27
- Supergirl Vol 4 28
- Supergirl Vol 4 30
- Supergirl Vol 4 33
- Supergirl Vol 4 34
- Supergirl Vol 4 35
- Supergirl Vol 4 36
- Supergirl Vol 4 39
- Supergirl Vol 4 40
- Supergirl Vol 4 41
- Supergirl Vol 4 42
- Supergirl Vol 4 43
- Supergirl Vol 4 44
- Supergirl Vol 4 46
- Supergirl Vol 4 47
- Supergirl Vol 4 48
- Supergirl Vol 4 49
- Supergirl Vol 4 50
- Supergirl Vol 4 67
- Supergirl Vol 4 68
- Supergirl Vol 4 77
- Supergirl Vol 4 78
- Supergirl Plus The Power of Shazam! Vol 1 1