@eris the best ones do have a full cast to do them. Sometimes it’s just a narrator reading you a story, but that’s not a problem if they’re a good narrator.
I remember someone returned a book and they were displeased because it was Benedict Cumberdick or whatever and they said “I’m not fond of this man, but his narration made me even less fond of him”.
Now that is a burn if I ever heard one.