Celebrity Parents Maggie Gyllenhaal on Monday and Wednesday By Staff Author Published on August 24, 2006 12:56 PM Share Tweet Pin Email Actress Maggie Gyllenhaal, 28, was looking radiant and stylish as she headed to the Late Show to chat with David Letterman about her film Sherrybaby. Maggie’s first child with Peter Sarsgaard, 35, is due this October. The couple is not finding out the sex previous to the delivery. Also, yesterday People captured the happy couple walking around their West Village neighborhood. Source: People.com; and again People.com Thanks to CBB reader Mary Beth.