"Monster" Season 3 is going "Psycho." Variety reports that Emmy winner Laurie Metcalf, Emmy nominee Tom Hollander, and British Independent Film Awards winner Olivia Williams have joined the cast of the next installment of Netflix's massively popular true crime anthology drama series from creators Ryan Murphy and Ian Brennan.

Monster” Season 3 has added Laurie Metcalf, Tom Hollander, and Olivia Williams to its cast, Variety has learned exclusively. The trio join previously announced cast member Charlie Hunnam, who will star as Ed Gein in the next season of the Netflix anthology series.

Ryan Murphy ’s Monster anthology series, which told the story of Jeffrey Dahmer in Season 1, and the Menendez Brothers in the recent second season, has expanded the cast list for Season 3. Last month

Laurie Metcalf, Tom Hollander and Olivia Williams will join Charlie Hunnam in the upcoming season of Monster. The third installment in the crime drama anthology series will dramatize the story of serial killer Ed Gein (Hunnam),

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).

The actor, also known for her roles in The Conners and Lady Bird, is among the new names announced for the next season – which will focus on the crimes of serial killer Ed Gein (played by Charlie Hunnam).

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.