Credit: Alberto E. Rodriguez/Getty Images Photo: James Marsden at the 2012 GQ Men of the Year Party in Los Angeles

30 Rock’s James Marsden is now a father of three! And we’re not counting the baby he’s planning on adopting with his onscreen wife Liz Lemon (Tina Fey).

The 39-year-old actor has two children son Jack, 11, and daughter Mary, 6 with his ex-wife Lisa Linde, and now he has a newborn baby boy with his Brazilian model girlfriend Rose Costa.

Us Weekly reports that Rose gave birth to little William Luca Costa-Marsden on December 14, a little over one year after Lisa filed for divorce from James.

Congrats to the proud parents!

Source: Us Weekly