I Know What You Did Last Summer costars Sarah Michelle Gellar and Freddie Prinze Jr. first met in 1997, got engaged in 2000, then starred together again in 2002's Scooby-Doo and its sequel. A low-key couple who tries their best to stay away from the paparrazzi lenses, Gellar and Prinze enjoyed newlywed life for seven years before having daughter Charlotte in 2009. "Becoming a parent is the most selfless act, and you need to be at a point in your life where you can give up anything and everything for a child," Gellar told People of waiting before starting a family. "I don't know if you know how to do that when you're in your 20s." Her husband concurs: "I feel like I appreciate this so much more." The couple is expecting their second child this fall.