Not entirely sure which two you mean.
I developed Cyra first, then over the course of crafting her further with the GM, we discovered Jonathan and Logan. Jonathan we did a lot of developing with. He started out as a Matrim Cauthon type, a dark past, but still mischevious... a kind of smarmy rogue.
Logan didn't get as much development, was more basic about his personality, how he reacts to Cyra and Jonathan. I left the development of Logan to the GM, as far as his backstory and what happened. And mmmmm, it was juicy. Hard to give his story since it wasn't mine, i dont have anything written from what I was told.