Same. And if I’m struggling to cast a character, I’ll stop reading and google image search actors/celebrities with the described features and find someone to cast in that role (in my head) before moving on.

I find it difficult to engage with the character until I can put a face on them.

And if there is already a movie/show based on the book, I will sometimes just cheat and use that casting for visualization purposes.

I envy those of you who can do all this in your head.