Mary Willa Mamie Gummer is an American actress. She starred in the title role of the CW series Emily Owens, M.D. , and played the recurring role of Nancy Crozier on The Good Wife . She has also appeared in the films Evening , Side Effects , Cake , and Ricki and the Flash . She was nominated for the 2016 Drama Desk Award for Outstanding Actress in a Play for the original production of Ugly Lies the Bone.
Gummer was born in New York City, New York, and is the daughter of actress Meryl Streep and sculptor Don Gummer. She grew up in Salisbury, Connecticut, and also spent five years in Los Angeles, California, with her older brother, Henry Wolfe Gummer, and younger sisters, actress Grace Gummer and model Louisa Gummer.
Source: Wikipedia