Warning: SPOILERS for Castle Rock up to episode three

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Since Hulu's Original series Castle Rock is built on the bones of Stephen King's imagination, it's no wonder the show is filled with its fair share of King references. Though audiences won't find classic scenarios torn straight out of one of his many books - like Jack Torrance hacking his way through a bathroom door a la The Shining or the immortal Ralphie Glick floating outside a bedroom window a la 'Salem's Lot - there is a healthy balance of subtle and overt callbacks to the author's famed literary works.

Inspired by Stephen King's literary universe, Castle Rock (based on a fictional town in which a number of King's stories are set - including Needful Things, Cujoand The Dead Zone) explores the troubled and complicated lives of its residents. After death row attorney Henry Deaver (played by André Holland) is summoned back to his hometown by a mysterious Shawshank State Prison inmate (played by Bill Skarsgård, who will reprise his role as Pennywise the Dancing Clown in Stephen King's IT Chapter Two), a deep-seated mystery in Castle Rock begins unearthing itself, pitting him, his troubled mother Ruth (played by Sissy Spacek, who starred in the adaptation of King's very first novel Carrie in 1976), retired sheriff Alan Pangborn (played by Scott Glenn), local real estate agent Molly Strand (played by Melanie Lynskey, who starred in the made-for-TV miniseries Rose Red, which was written by King), and horror enthusiast Jackie (played by Jane Levy) against the town's seedy past.

Related: Castle Rock Cast & Character Guide

Between characters and landmarks torn straight out of his books to storylines that have already been adapted into movies and TV shows of their own, Castle Rock is filled with as much of the supernatural as it is ample servings of Stephen King trademarks. In fact, even the show's opening credits include shout-outs to a number of King's stories, including text from ITDolores Claiborne, and Misery, among others.

Episode One - "Severance"

André Holland in Castle Rock Hulu

In the first episode of Castle Rock, direct references to Stephen King's universe enter right out of the gate. The very first scene introduces Sheriff Alan Pangborn circa 1991 - a character who has shown up in several King stories, beginning with The Dark Half (which is located in the fictional town of Ludlow, Maine, which neighbors Castle Rock). However, Pangborn's most notable role is in the novel Needful Things, in which the old-school sheriff faced off against the soul-snatching demon Leland Gaunt. In Castle Rock, the 2018 version of Pangborn is retired, living with Spacek's Ruth Deaver, and played by Scott Glenn. It's worth noting that the occasional time jumps between 1991 and 2018 (27 years) is the same amount of time that It's Pennywise the Dancing Clown hibernates for prior to feeding on the young residents of Derry, Maine.

The episode also showcases Shawshank State Prison, which has been featured in several King stories, including the novella Rita Hayworth and Shawshank Redemption (as well as its film adaptation from director Frank Darabont), 11/22/63, Apt Pupil, Bag of Bones, Blaze (written under King's pseudonym Richard Bachman), Dolores Claiborne, and It. The episode also mentions that the bullet hole from former Shawshank warden Samuel Norton's suicide is still in the warden office's wall (a photo of Bob Gunton as Warden Samuel Norton from The Shawshank Redemption is seen hanging on the wall, which makes Castle Rock especially unique in that it doesn't just involve classic King characters, but some actors who played those characters in previous adaptations).

Another callback comes in the form of what appears to be a chess piece young Henry Deaver is seen holding. These pieces show up in later episodes as well, and appear to hold some significance. In ShawshankAndy Dufresne passes time during his prison sentence by carving a whole set of soapstone chess pieces. They represent resilience and hope; persevering, despite the odds. Whether or not those same elements carry over into Castle Rock, however, remains to be seen.

Related: Castle Rock: Who Is Bill Skarsgård’s Mysterious Character?

The last reference may not even be a reference at all, but is worth mentioning for diehard King fans. The episode also features a scene in which a mouse gets itself caught in a mousetrap - and though it's clearly meant to signify the fact that Henry is being drawn into a potentially deadly situation by revisiting Castle Rock, it could also be a nod to one of King's earliest short stories titled Codename: Mousetrap. The story was published in his high school newspaper in 1965.

Page 2: Episodes Two and Three

Scott Glenn in Castle Rock

Episode Two - "Habeas Corpus"

Now that audiences have become familiar with the environment, characters, and budding plot, the second episode of Castle Rock has room to feature a significantly larger amount of King references - the first of which directly link the series to classic King stories. When Henry Deaver is flipping through old newspaper clippings, a number of headlines are revealed that reference The Body (later adapted into the Rob Reiner movie Stand by Me), Cujo, and Needful Things.

The headline for The Body reads: "Anonymous Tip Leads to Boy's Body;" the headline for Cujo reads: "Rabid Dog Tears Through Town" (with another smaller headline right beside it that reads: "Rabies Vaccines at an All Time High"); and the headline for Needful Things reads: "Shopkeeper Missing After Oddity Store Fire" (with the words "Leland Gaunt" and "missing" underlined in the body of the article).

The Shining also gets a nod when the last name of Jane Levy's character Jackie is revealed to be Torrance. This is a fairly blatant reference to one of the novel's main characters Jack Torrance (played by Jack Nicholson in the Stanley Kubrick adaptation and Steven Weber in Mick Garris' adapted-for-TV adaptation), though it's unclear whether or not the two are related.

Related: Every Stephen King TV Show, Ranked Worst To Best

The episode then introduces two locations featured in King's novels: the Yarn Mill and the Mellow Tiger Bar. The former is featured in the short story Graveyard Shift (which is simply referred to as a textile mill in the story, but specified as a Yarn Mill in the feature-length adaptation - which itself pays homage to King by changing the original name of the mill [Bartlett] to Bachman, the surname of King's pseudonym). The latter is a bar introduced in Needful Things, in which two of Castle Rock's residents murdered each other.

When Bill Skarsgård's mysterious inmate is moved to a new cell, his cellmate is reading William Golding's Lord of the Flies. And while this clearly isn't a direct King reference, King based the name Castle Rock off of the mountain featured in the book - where some of the most horrific moments in the story take place. In fact, Lord of the Flies is one of King's favorite books, and he once wrote a introduction in the novel's centenary edition, saying that it's "not just entertainment; it’s life-or-death." What's more is that even though this cell is numbered nine, some markings on the wall next to the number make it appear to read nineteen. Nineteen is a prominent number in King's stories; and though its appearance is most prominent in the Dark Tower series, it also shows up in The Dead Zone, Under the Domeand the novella N., among others.

Later in the episode, as the character Molly Strand is further explored, it's revealed that she has the ability (or curse) to be psychically linked to other people. This is a clear reference to the Castle Rock-set novel The Dead Zone, in which the main character Johnny Smith (played by Christopher Walker in David Cronenberg's adaptation) has the ability to see into people's future by simply touching them. The ability also has links to the psychic ability King refers to as "shining," which has been featured in several King stories like The Standthe Dark Tower series, and, of course, The Shining.

Finally, the last King reference in this episode comes courtesy of Jackie Torrance, who refers to the storm in which a young Henry Deaver got himself lost in as "a mega snowstorm; Guinness Book s***" - which may be referencing Stephen King's written-for-TV miniseries Storm of the Century. This one may not be quite as concrete as the other references, but given that the miniseries gets a subtle shout-out in the opening credits, it's clearly on the minds of Castle Rock's creators.

Related: 15 Best Stephen King Movies of All Time

Episode Three - "Local Color"

Melanie Lynskey in Castle Rock

Similar to Episode One, the third episode of Castle Rock is fairly light on the King references. That said, there are still some fun callbacks - the most notable being the slogan for Molly Strand's real estate company: "Live like a King!"

In fact, speaking of Molly, she plans on proposing plans for revitalizing downtown Castle Rock. And at the center of these plans is a gazebo, which she explains to Jackie Torrance is meant for "peaceful contemplation." Ironically, the town's gazebo featured in The Dead Zone is actually the scene of a grisly crime, where serial killer Frank Dodd confronts and kills one of his many victims.

Another scene in the episode (which is more of an homage than a reference) might be nodding to a scene from King's short story Cycle of the Werewolf (which was adapted into the movie Silver Bullet with the late Corey Haim). In Castle Rock, Molly Strand has a nightmare that takes place inside a church in which all of the parishioners, as well as the priest (who is meant to represent Henry Deaver's late father) have bandages covering their faces. Visually and thematically, it's extremely similar to a scene from Silver Bullet, wherein all of the parishioners transform into werewolves. In fact, both scenes involve the priest asking God for mercy (though in very different contexts).

Finally, there is a scene that is both an homage to Stephen King's short story Children of the Corn and William Golding's Lord of the Flies. While Molly is in pursuit of a drug dealer, she happens upon a group of children wearing paper mâché masks who are in the middle of a makeshift courtroom trial. The scene is reminiscent of both stories, in which children form their own hierarchy and govern with appointed leaders.

The rest of the series will no doubt include even more Stephen King references in the span of its ten-episode run, so audiences will do well to keep their eyes peeled on everything else Castle Rock's creators might have snuck in. After all - and this has never been more appropriate - the Devil's in the details.

More: Castle Rock Review: A Leisurely Stroll Through Stephen King’s World