In a year so full of successful Stephen King adaptations, we suppose it should come as no surprise that AT&T’s Audience Network was able to find an audience for their King-adapted “Mr. Mercedes” series last year. Enough of an audience, in fact, that a second season was ordered ahead of the premiere season’s finale.

Deadline reports tonight that Jack Huston (“Boardwalk Empire”) and Maximiliano Hernandez (Sicario) have joined the cast for the forthcoming second season. Huston will play Brady Hartsfield’s doctor Dr. Felix Babineau, while Hernandez will portray Assistant DA Antonio Montez.

Harry Treadaway returns as Hartsfield, alongside Brendan Gleeson as Bill Hodges. Jharrel Jerome, Scott Lawrence, Breeda Wool, Justine Lupe and Holland Taylor are also back.

The second season will be based on King’s best-selling Bill Hodges Trilogy, which includes Mr. Mercedes, Finders Keepers and End of Watch.

Production begins next month in Charleston, South Carolina. Season 2 will premiere this summer on DirecTV, AT&T U-verse and DirecTV Now.