Four guest stars have checked into "Castle Rock." Robin Weigert, Sarah Gadon, Greg Grunberg, and Alison Wright are all set to appear in Season 2 of the Hulu psychological horror series, Deadline reports. The actors join a cast that already includes Lizzy Caplan, Paul Sparks, Barkhad Abdi, Yusra Warsama, Elsie Fisher, and Matthew Alan.

The upcoming season centers on a feud between warring clans that gets worse when Annie Wilkes (Caplan), a budding psychopath, ends up waylaid in Castle Rock. Weigert and Gadon will both play characters with ties to her; Weigert is Annie's mother, Crysilda Wilkes, while Gadon will portray someone from her past, the vengeful Rita Green. Grunberg, on the other hand, will play Castle Rock's Sheriff Boucher, and Wright is Valerie, a nice local with an interest in the town's dark history.

Each of the four newly announced guest stars has a long list of TV credits. Weigert, an Emmy nominee, comes to the project having starred in series like "Deadwood" and "Dietland." Gadon recently appeared in "True Detective" Season 3 and previously starred in Netflix's "Alias Grace." Meanwhile, Grunberg's resume include the shows "The Flash" and "Geeking Out," among others. Wright was a regular on "Feud: Bette and Joan" and has a main role in the upcoming "Snowpiercer."

"Castle Rock" comes from Bad Robot Productions in association with Warner Bros. TV. It is based on characters and settings from work by Stephen King and was developed for TV by Sam Shaw and Dustin Thomason. The duo executive produce alongside King, J.J. Abrams, Ben Stephenson, Vince Calandra, and Liz Glotzer.

"Castle Rock" was renewed for Season 2 in August, but so far, no premiere date has been announced.

[via: Deadline]