Laurie Metcalf, Tom Hollander and Olivia Williams have boarded the cast of Ryan Murphy's "Monster" Season 3, TheWrap has learned. Metcalf, Hollander and Williams will join Charlie Hunnam, who is set to star in the Netflix anthology series as Ed Gein.

The award-winning actor will play Augusta Gein, the Wisconsin serial killer's religious, domineering mother, in the third season of "Monster."

As of today, he’ll also be joined by Laurie Metcalf, Tom Hollander, and Olivia Williams, who will play Gein’s mother, Alfred Hitchcock, and Hitchcock’s wife, Alma Reville, respectively (via Variety).