May-December dating and sex: Mariana Klaveno is one day short of being 18 years younger than Dylan McDermott. She was born on October 25 while he was born on October 26. At the time, McDermott was dating co-star Maggie Q, who is the same age as Klaveno. Conversely, Tracy, played by Tara Summers was supposed to be much older than Perry, played by Erik Stocklin. In fact Summers was born in 1979, and Stocklin in 1982, an age gap of only 3 years.