X-Filer Gillian Anderson, 40, gave birth to a baby boy, Felix, on Oct. 15, it was revealed on Tuesday. It's the second child for Anderson and her boyfriend Mark Griffiths. The name reportedly comes from the character on the hit TV comedy The Odd Couple. Anderson has a daughter Piper, 13, with her first husband Clyde Klotz, an art director on the X-Files, and a son Oscar, 2, also with Griffiths. The actress was last seen in in the film How To Lose Friends And Alienate People. (Photo: WENN)