Character Name: Caren Ortensia
Canon: Fate/Hollow Ataraxia
Appearance: here, here, here, and here
Brief: Caren is a young woman who's been pretty isolated for most of her life. While she can be soft spoken and helpful, she also has a twisted sense of humor. While she may know of some Servants, getting her to admit some information might take some arm twisting.
Seeking/Offering:
Seeking out people that will help get her into social situations, learn about the world, and generally get her out of quiet areas;
Offering someone who knows something about medical stuff, dragging some poor sap into some trouble, someone who may take becoming a monster well...in a twisted way...

I'm sure there's more but those are for starters! Come at me!