The casting comes shortly after Gummer's mother, Meryl Streep, boarded HBO's 'Big Little Lies.'

HBO is staging a bit of a mother-daughter reunion.

Weeks after casting Meryl Streep in season two of Big Little Lies, the premium cable network has cast her daughter Mamie Gummer in season three of True Detective.

Gummer will recur in the Nic Pizzolatto-created drama and play Lucy Purcell, a young mother of two at the center of a tragic crime.

Season three of the anthology tells the story of a macabre crime in the heart of the Ozarks and a mystery that deepens over decades and plays out in three separate time periods. Moonlight Oscar winner Mahershala Ali stars as Wayne Hays, a state police detective from Northwest Arkansas. Carmen Ejogo (Selma) will play the female lead, Amelia Reardon, an Arkansas schoolteacher with a connection to two missing children in 1980. Stephen Dorff and Scoot McNairy co-star.

Pizzolatto serves as showrunner and directs alongside relative newcomer Jeremy Saulnier. Executive producers include Pizzolatto, Saulnier, Scott Stephens and season-one stars Woody Harrelson and Matthew McConaughey, as well as original director Cary Joji Fukunaga. Anonymous Content's Steve Golin, Bard Dorros and Richard Brown will also be credited as executive producers.

Gummer's credits include CBS' The Good Wife and CBS All Access' The Good Fight, WGN America's Manhattan and Amazon's The Collection. Next up she has An Actor Prepares, opposite Jeremy Irons and Jack Huston. She's repped by CAA and Untitled Entertainment.

True Detective season three will air in 2019.