'Monsters: The Lyle And Erik Menendez Story' Cast vs. People In Real Life

On August 20, 1989, Lyle and Erik, then just 18 and 21, murdered their parents, sparking a sensational televised trial that captivated the nation. With the defense claiming self-defense and the prosecution alleging greed, the brothers were ultimately convicted of first-degree murder and sentenced to life without parole. To bring this compelling story to life, Murphy has assembled a star-studded cast, including Javier Bardem, Nathan Lane, and Chloë Sevigny, along with newcomers portraying the Menendez brothers.

Lyle Menendez was the older brother, convicted for the murder of his parents in 1989. His defense argued that he was abused, and he presented a charismatic persona during the trial.

Nicholas Alexander plays "Lyle"
Chavez is an American actor best known for his role as "Spencer Cassadine" on the soap opera 'General Hospital,' which he joined in 2021. His compelling performance earned him a Daytime Emmy Award nomination for Outstanding Younger Performer in 2022.

Erik Menendez, the younger brother, was also convicted for his parents’ murder. He was often portrayed as more vulnerable and emotionally affected by the events surrounding the killings.

Cooper Koch plays "Erik"Koch is an American actor known for his compelling performances in film and television. He gained significant recognition for his role as Glen in the critically acclaimed film 'They/Them,' a horror-thriller that explores themes of identity and acceptance. Koch also appeared in the coming-of-age drama series 'The Edge of Sleep' and had a notable role in the film 'The Fall of the House of Usher.'

Javier Bardem plays "José Menendez"José was the father of Lyle and Erik Menendez. A Cuban immigrant, he was a successful entertainment executive known for his controlling nature and tumultuous relationship with his sons.Bardem is an acclaimed Spanish actor known for his versatile performances. He won the Academy Award for Best Supporting Actor for his role in 'No Country for Old Men' and has starred in critically acclaimed films such as 'Skyfall,' 'Biutiful,' and 'The Sea Inside.'

Chloë Sevigny plays "Kitty Menendez"

Kitty Menendez was the mother of Lyle and Erik. Known for her beauty and troubled marriage, she had a strained relationship with her sons, which was a focal point during the trial.

Chloë Sevigny is an American actress and fashion icon, recognized for her roles in 'Boys Don't Cry,' 'The Brown Bunny,' and 'Big Love.'

Ari Graynor plays "Leslie Abramson"
Ari Graynor is a talented American actress known for her versatile roles in film and television. She gained fame in 'Bad Teacher' (2011) alongside Cameron Diaz and appeared in 'The Sopranos' as "Caitlin 'Cat' Parisi."

Dominick Dunne was an American writer, producer, and journalist best known for his work covering high-profile criminal cases and the intersection of celebrity and crime.
He began writing for magazines like Vanity Fair, where he chronicled infamous trials, including the Menéndez brothers' trial for the murders of their parents, which captivated the public in the early 1990s.

Nathan Lane plays "Dominick Dunne"
Lane is a celebrated American actor renowned for his work in theatre, film, and television. He won a Tony Award for Best Featured Actor in a Musical for his role as "Albert" in 'The Producers' (2001). He has also made memorable appearances in television series like 'Encore!' and 'Modern Family.'