"He's very different than the Dick Hallorann we know from The Shining, or certainly from Doctor Sleep," Fuchs explains. "So it was all about finding those little nuggets buried in the text and letting story and character dictate it. So, for instance, if a character's going to get carted off to prison – I guess you'd see that in the trailer. It was suddenly a question, well, 'What's the nearest prison? Shawshank.' It made sense."
"So we were never shoehorning things in. It was all from a place of what is the most effective, dramatic choice. "And then often the answers to those questions suggested other elements of Stephen King lore and canon. 
But there are a lot of Easter eggs in this show. There are definitely, for Stephen King mega fan like myself, like Brad, this thing is chock full of Easter eggs, of references to a broader Stephen King universe. So I'm excited for fans to try to discover those."