Arnold Schwarzenegger, 73, had an affair with Mildred Baena, 59 in 1996. It allegedly happened while the family was on vacation and the actor had stayed behind as he was shooting a movie. Arnold, at first, was convinced that Mildred’s husband was the father of the child but quickly realized that Joseph was starting to resemble him. Mildred worked for the family for nearly 20 years before retiring in 2011.