I don’t really plan my characters. I may have a vague idea that I need a character in a certain place and they might be kinda like this. But I never know my characters until I write them. I consciously put more of myself in Tabitha than any other character I’ve written in the past. And even that didn’t happen until I had written a lot of her already. In fact I remember the specific place where Tabitha shoved her personality in my face.
It was a similar situation with Wildrose, in that he ended up being a lot like my husband unintentionally, and later I put more pieces of my husband in there. At the same time he is himself.
And some characters come more easily than others. The Huntsman was the most difficult character for me in this novel. I literally did not pin him down until several drafts in. He was going to be the huge gruff guy, then the comedic relief, and who knows what else. He flopped all over the place until he finally settled where he is.
In general, I don’t think I ever look at a character or a person and set out to write any of my characters based on them. It just drifts that way as I go, but then I am a discovery writer. I am convinced that those characters just exist in my brain and I write until I pull enough of them out.