Just wondering how normal this is as I am too embarassed to ask have never asked friends about this.
When you read a book, how do you imagine the characters? So you get a description, a woman with long flowing red hair, do you just conjure up an image of a random woman fitting the description, or is it a woman you recognise?
I alsways choose actors. In fact, I even have to work hard to use different actors across different stories if they sound like they have similar features to one I've 'used' before. I'll make it fit even if the age isn't just right. I can even remember when looking at books I've read which 'actress' had the starring role in it 
Is this standard?