"Big Littles" is adding yet another Oscar winner to its cast.

HBO announced that Meryl Streep, a three-time Academy Award winner and 21-time nominee, will join the Emmy-winning drama in Season 2. She'll play the Mary Louise Wright, the mother of deceased Perry (Alexander Skarsgard).

Last season's finale explained who died at the school fundraiser and who was responsible. It turned out Perry died, after violently confronting his abused wife Celeste (Nicole Kidman). Her friends, including Madeline (Reese Witherspoon) and Renata (Laura Dern), stepped in to help. But it was Bonnie (Zoe Kravitz) who pushed Perry to his death. The women closed ranks and told police it was an accident.

As for Streep's role in Season 2, HBO described it this way:

Concerned for the well-being of her grandchildren following her son Perry's death, Mary Louise arrives in Monterey searching for answers.

So, we're expecting some fireworks-heavy scenes between Streep and the Emmy-winning Kidman.

In December, HBO officially ordered the second season of the acclaimed drama, which competed at the Emmys and Golden Globes as a limited series (causing some controversy). Director Jean-Marc Vallee won't return; helming duties will be taken on by Andrea Arnold. David E. Kelley will again script the episodes, based on a story outline by author Liane Moriarty.

Streep just received her 21st Oscar nomination for her performance in "The Post." If "Big Little Lies" continues to reap its actors all the awards, Streep will be one step closer to an EGOT. But not a big step — she'd still need a Grammy and a Tony.