Allison Tolman has just been cast in Hulu's upcoming TV series Castle Rock. With the brand new series premiering at the end of July, Tolman's last minute casting adds that much more to the mystery of this Stephen King-inspired show.

Based on a fictional town in Maine showcased in a number of Stephen King stories, including Needful Things, Cujo, and The Dead Zone, Castle Rock explores the troubled lives of its residents. Though plot specifics have yet to be revealed, the series will center around a number of locals all dealing with their individual inner demons (or literal ones). When Henry Deaver (Andre Holland) returns to Castle Rock, a dark web of mystery begins to unravel, pitting him, his mother Ruth (Sissy Spacek, whose career was launched in the adaptation of Stephen King's very first novel Carrie back in 1976), and others against the the town's seedy past. Created by Dustin Thomason and Sam Shaw, and executive produced by J.J. Abrams, Castle Rock also stars Melanie Lynskey, Scott Glenn, Jane Levy, Terry O'Quinn, Chosen Jacobs, and Bill Skarsgård. Now, Fargo's Allison Tolman has just joined the cast.

With all of the mystery surrounding the upcoming series, there is very little to extract from the cryptic teaser trailers released by Hulu. That said, according to THR, Allison Tolman has been revealed to play the sister of Melanie Lynskey's character. In fact, after Lynksey had been cast in the show this time last summer, Tolman had mentioned on Twitter that she would have loved to play her sister - and that's what drew the attention of the series' producers.


In the show, Lynksey will play a local real estate agent named Molly Strand. However, it's unclear how exactly Tolman's character will fit into the story, and whether or not she will play an integral role. Given that she was cast so close to the series premiere, it's fair to assume that her character won't be as significant to the story as the original lead cast - or perhaps she won't appear until later on in the season.

Castle Rock is hardly holding back when it comes to delivering suspense, mystery, and intrigue for audiences - and the show hasn't even premiered yet. Abrams is no stranger to creating unique, yet cryptic, marketing campaigns, and Castle Rock is no exception. Especially with the Cloverfield series, Abrams went all-in on oblique advertisements, using fake products to promote the first movie (see: Slusho soft drinks), despite the fact that they didn't feature anything even remotely related to the movie itself. And even though Castle Rock's marketing is decidedly more aligned with the tone of the show, it's still just as mysterious.

Castle Rock premieres on July 25 on Hulu.