Yup! And with so little canon about many of them you can be very OC in your interpretation of what their personality, motives, backstory, etc is like. And when using obscure NPCs for one or both of the main characters in your story, you're also very much less likely to run into the "Oh, it's another f!Cousland/Alistair fic, I won't even bother reading it" effect. Mind you, you do run into its opposite - "Oswyn? Varel Baern? I have no clue who those are. Pass!"

But I'm enjoying writing that particular story so much that I don't care if its readership numbers are low; it's fun for me!