No particular order, I'm just pasting these down as they appear on my Photobucket account. I lost some NPC portraits, but hopefully I can get them all at one point.
Any portrait marked Unknown, means I can't remember where I used it (or if I have used it yet). If you happen to remember where I used it, or if I gave that character a name, please let me know!
[in progress]
Ardeth Azealin
(http://img.photobucket.com/albums/v223/throndir/Portraits/Ardeth/paladin_female.jpg)
Arian Swiftblade
(http://img.photobucket.com/albums/v223/throndir/Portraits/Arian/DrowThief.jpg)
Assassin (Chapter 2, checkpoint)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Black%20Arms/MPortrait20_h.jpg)
Taelthan Gate Guard
(http://img.photobucket.com/albums/v223/throndir/Portraits/City%20Guard/MPortrait84_H.jpg)
Taelthan Gate Archer
(http://img.photobucket.com/albums/v223/throndir/Portraits/City%20Guard/MPortrait128_H.jpg)
Unknown? (Someone if you remember where I used this, please let me know)
(http://img.photobucket.com/albums/v223/throndir/Portraits/City%20Guard/MPortrait327_H.jpg)
Unknown? (Someone if you remember where I used this, please let me know)
(http://img.photobucket.com/albums/v223/throndir/Portraits/City%20Guard/MPortrait311_h.jpg)
Darkroot Cultist
(http://img.photobucket.com/albums/v223/throndir/Portraits/Cultist/MPortrait69_L.jpg)
Unknown (That annoying gnome whose name eludes me at the moment..)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Gnome%20Inventor/RGnPortrait4_h.jpg)
Kalaarh'Thorm
(http://img.photobucket.com/albums/v223/throndir/Portraits/KalaarshThorm/ROrcPortrait23_H.jpg)
Leasa
(http://img.photobucket.com/albums/v223/throndir/Portraits/Leasa/FPortrait24_H.jpg)
Liana Amarir
(http://img.photobucket.com/albums/v223/throndir/Portraits/Liana%20Amarir/FEPortrait4_H.png)
Lyle Freehill
(http://img.photobucket.com/albums/v223/throndir/Portraits/Lyle%20Freehill/RHMPortrait10_h.jpg)
Perlot Everburn
(http://img.photobucket.com/albums/v223/throndir/Portraits/Perlot%20Everburn/MPortrait361_H.jpg)
Rasilope
(http://img.photobucket.com/albums/v223/throndir/Portraits/Rasilope/MEPortrait61_h.jpg)
Sanya Azealin
(http://img.photobucket.com/albums/v223/throndir/Portraits/Sanya/Sanya.jpg)
Annia Siadon (Chapter 1)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Silver%20Arms%20Racist/FPortrait136_H.png)
Balthas, Haron, or Unknown?, Unknown? (Chapter 1)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Silver%20Arms%20Racist/MEPortrait13_H.png)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Silver%20Arms%20Racist/MEPortrait14_H.png)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Silver%20Arms%20Racist/MPortrait59_H.png)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Silver%20Arms%20Racist/MPortrait54_H.png)
Talas Arlam
(http://img.photobucket.com/albums/v223/throndir/Portraits/Talas%20Arlam/MPortrait261_H.jpg)
Uthaal Nailo
(http://img.photobucket.com/albums/v223/throndir/Portraits/Uthaal%20Nailo/UthalDeviantArt.png)
Viran Nef'Azul
(http://img.photobucket.com/albums/v223/throndir/Portraits/Viran%20NefAzul/ViranNefAzul.jpg)
Ranulf (Chapter 1, The Warden)
(http://img.photobucket.com/albums/v223/throndir/Portraits/Warden/MPortrait120_H.jpg)
Weyard Evestress
(http://img.photobucket.com/albums/v223/throndir/Portraits/Weyard%20Evestress/FPortrait72_H.jpg)
Haru
(http://i27.photobucket.com/albums/c193/shadowelf20/monk_1.jpg)