The Perks Of Being A Book Addict discussion

I'm just curious, does anyone else spend time reading a book and casting actors to characters in their mind while doing so? For instance, currently reading (and loving) The Wedding People, but simultaneously casting the main characters in my head (Phoebe Waller Bridge and Lili Reinhart if you're wondering). I don't think I do that with every book I read, but if a book can easily be manuscripted, my brain is already on it.