Lots of times I don’t know what the character’s name is and I don’t have time to go searching baby name websites for a good name. So the character becomes X on the page. It’s a silent reminder to find a name later.
It’s the same thing for scenes. Sometimes I’ll be writing and I need a scene to show something somewhere in the middle of the story. I’ll insert Scene X in big bold letters wherever the scene needs to be.
As for why X and not A or – or some other symbol as a placeholder? I don’t really know. I suppose X represents the unknown to me. No doubt this is a result of spending years in the classroom being told to Find X.
How do you deal with unknown characters?