New details about 'Big Little Lies 2' revealed

Reese Witherspoon, Nicole Kidman, and Shailene Woodley also star.

The three-time Oscar winner has joined the cast of "Big Little Lies 2," HBO announced Wednesday.

Streep will star as Mary Louise Wright, the grieving mother of Alexander Skarsgård's character, Perry, who was killed in the Season 1 finale.

Scribe David E. Kelley will return to write all seven episodes, and Andrea Arnold will replace Jean-Marc Vallée as director.

A release date for Season 2 has not yet been announced.