Hulu's new Stephen King-inspired series, Castle Rock, tells the story of Henry Deaver (Andre Holland), a lawyer who returns to his childhood home after a mysterious prisoner, named "The Kid" (Bill Skarsgård), is found trapped in a cage underground. His return to the city sets off a chain of events, unleashing clues to the town's sordid past, which also brings Deaver's own personal demons to the surface.
For those unfamiliar with King's vast slate of work, there is actually a substantial number of tales -- from short stories to expansive novels -- that either take place in the fictional city of Castle Rock, or make reference to the locale in some way. If we're keeping count (and we are) that'd be 13 tales in Castle Rock, and 24 that mention its existence. In short, the quintessential Master of Horror created this universe before cinematic universes were a thing, and way before Hulu was a glimmer in your grandpappy's eye.
This brings us back to the 10-episode first season, which debuted its first three episodes on Wednesday, July 25. Aside from the show's cast, which features a plethora of Stephen King alumni -- Sissy Spacek (Carrie), Terry O'Quinn (Silver Bullet), Bill Skarsgård (IT), Melanie Lynskey (Rose Red), Anne Cusack (Mr. Mercedes), Frances Conroy (The Mist), and Chosen Jacobs (IT), to be specific -- other Easter Eggs and references are scattered throughout the series. Some are more obvious than others, but they all seem to be achieving the end-goal of further building out Stephen King's world. In case you aren't keeping track, here are the most important references featured throughout the first three episodes of Castle Rock.