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.

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.

Laurie Metcalf joins Netflix’s ‘Monster’ Season 3, portraying Ed Gein’s mother alongside Tom Hollander as Hitchcock.

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.