Before Monsters, Cooper was best known for his supporting roles in projects like the Starz series Power Book II: Ghost, the 2020 movie A New York Christmas Wedding, and the 2022 Peacock thriller They/Them. He also starred alongside Jena Malone in the 2022 body-horror movie Swallowed.

"I turned my trailer into Erik's room so I had clothes everywhere, and I had pictures of him on the wall, pictures of me too," said the actor, whose previous credits include "They/Them" and "Power Book II: Ghost,

Chloë Sevigny also stars in the nine-part follow-up to 'Dahmer — Monster: The Jeffrey Dahmer Story,' this time chronicling the infamous 1989 murders of a couple by their two sons.

Erik Menendez, who, along with his older brother Lyle was convicted of killing their parents, called Ryan Murphy's "Monsters" "dishonest."

Monsters: The Lyle and Erik Menendez Story’ fictionalizes the true story of two brothers who killed their parents in 1989. See the ‘Monsters: The Lyle and Erik Menendez Story’ cast side-by-side with their real-life counterparts.

Netflix tapped some big-time actors to tell the story of Lyle and Erik Menendez. Here's who's who in Monsters.

Real-life Menendez brother, Erik, has weighed in on Ryan Murphy’s depiction of his past crimes in the new Netflix series, "Monsters: The Lyle and Erik Menendez Story.” In an online statement posted via his wife Tammi Menendez’s X account,

Monsters: The Lyle and Erik Menendez Story, streaming Sept. 19 on Netflix, stars Nicholas Chavez and Cooper Koch as Lyle and Erik, the real-life brothers who were convicted in 1996 of the brutal 1989 murders of their parents,

Murphy’s series centers on the Menendez brothers’ murder trial and the claim that the siblings killed their parents, José and Mary Louise “Kitty,” in an act of self-defense, not for the large inheritance they bore to gain.

The Netflix show centers on the case of Lyle and Erik Menendez, who were convicted of murdering their parents in 1996