For Suikoden III, while they are playable characters, they are just three of 108 characters in the game that are recruitable. While fun characters, they are not part of the main story at all and can be skipped. I have not seen the Japanese writing for their names at any Suikoden site.
I nominated the one as "Afghan Girl" due to the fan theory that she is based on National Geographic's "Afghan Girl". In which case her name would be Sharbat Gula. The other two were just physical descriptions of them.
Suikoden III & Madoka Magica
For the remaining Madoka Magica characters, here is the relevant section about them on the Puella Magi wiki: http://wiki.puella-magi.net/Madoka_Magica_Episode_12:_My_Best_Friend#Other_Magical_Girls
I nominated the one as "Afghan Girl" due to the fan theory that she is based on National Geographic's "Afghan Girl". In which case her name would be Sharbat Gula. The other two were just physical descriptions of them.