According to People magazine, little Grier Hammond Henchy arrived in the morning, weighing 7 pounds (3.18 kg.). Brooke and her husband, Chris Henchy, are already the parents of a two year-old girl, Rowan.
Shields, 40, who starred in The Blue Lagoon, Suddenly Susan, and Endless Love, among others, married Henchy in 2001.
In 2005, the actress wrote a best-selling book, Down Came the Rain, which chronicled her battle with post-partum depression after the birth of her first child.