The Big Little Lies cast keeps getting bigger and bigger as Meryl Streep will reportedly join the second installment of the HBO series.

The Oscar-winning actress will play Mary Louis Wright, the mother of Perry played by, Alexander Skarsgard. Following Perry's death in Season 1, Wright arrives in Monterey to search for answers about her son's death.

Streep is the first new cast addition since the second installment was confirmed. The new role marks Streep's return to HBO following her Emmy-winning performance in the miniseries Angels in America in 2003.

The actress's addition to the Season 2 cast means that the hit series will now feature three Oscar winners as she joins Nicole Kidman and Reese Witherspoon.

Nicole Kidman And Reese Witherspoon Produce Season 2

According to Variety, Kidman and Witherspoon will continue to executive produce the new season in addition to starring in the show. While Kidman and Witherspoon are behind the production of the new season, American Honey director Andrea Arnold will direct all seven episodes.

When asked how she felt about starring in Big Little Lies Season 2 and being the executive producer for the second time, Witherspoon stated that she is so excited to be bringing back the talented team of artists.

"It gives us the opportunity to delve deeper into the lives of these intriguing and intricate Monterey families and bring more of their stories back to the audience who embraced and championed them," Witherspoon said.

The series also stars Shailene Woodly, Zoe Kravitz, Laura Dern, Adam Scott, and many others.

Big Little Lies weaves a darkly comedic tale of murder and mischief in Monterey, California. Amid loving moms, successful husbands, and beautiful children, there exists a community fueled by rumors and divided into haves and have-nots, exposing fractured relationships between family and friends.

The hit series premiered in February 2017 and went on to win eight Primetime Emmy Awards at the 69th annual ceremony in September 2017 including Best Limited TV Series or Movie, as well as wins for Kidman, Witherspoon, and Skarsgard.

Meryl Streep Makes Big Moves

The news comes at the perfect time as Streep may win an Oscar for her leading role in Steven Spielberg's The Post. The film helped Streep break her own Oscar nomination record with her role as Washington Post publisher Kay Graham.

The philanthropist received her 31st Golden Globe nomination at the 75th annual Golden Globe Awards and her 21st Academy Award at the 90th Academy Awards for Best Actress.