Wrenn Schmidt: Wrenn Schmidt. Actress: For All Mankind. Melinda Wrenn Schmidt is an American actress, best known for her starring role as NASA engineer and flight director Margo Madison in the Apple TV+ original science fiction space drama series For All Mankind. Other television roles include Julia Sagorsky in the period drama series Boardwalk Empire (2012-2013), as KGB handler Kate in the spy drama series The Americans (2014), as Dr Iris Campbell...
