Actress Mamie Gummer Welcomes Baby Boy

EXTRA reports that Meryl Streep has stepped into a new role as a Grandmother! Streep's daughter, 35-year-old actress Mamie Gummer, has recently given birth to a baby boy. This is Gummer and fiancé Mehar Sethi's first child. News of Mamie’s pregnancy was announced in December, a few months after Mehar proposed. Gummer is best known for her roles in “True Detective,” “The Good Wife” and “Ricki and the Flash.” No word yet on the baby's name.