Actor Hugh Grant has famously declared to Howard Stern that relationships aren’t meant to be monogamous, so maybe that’s why he’s had so many children in quick succession. His first was born in September 2011 and is a 5-year-old daughter named Tabitha, whose mother is restaurant receptionist Tinglan Hong. The New York Daily News reported they had another child, a 4-year-old son named Felix, who was born in Feb. 2013, just five months after his second child, 4-year-old son John, was born to Swedish producer Anna Eberstein in Sept. 2012.
Actor and former governor of California Arnold Schwarzenegger famously had a child with his housekeeper while married to journalist and activist Maria Shriver. Although he didn’t learn about his now 19-year-old son, Joseph Baena, until he turned 7 or 8, People magazine reported Schwarzenegger continued to employ his mistress, Mildred Baena, and secretly gave her money for their son. The “Celebrity Apprentice” host confessed the news to Shriver and their four kids in 2011 and she filed for divorce shortly after.