Criss and Liz Lemon may not have a baby yet, but James Marsden does!
Rose Costa, whom Marsden previously dated after splitting from wife Lisa Linde in 2011, gave birth to William Luca Costa-Marsden on Dec. 14 in Los Angeles.
Linde filed for divorce from the X-Men star in September 2011. The two were married for 11 years and have two children together, son Jack Holden, 11, and daughter Mary James, 7.
In a case of art possibly imitating life, Marsden's 30 Rock character is trying to have a baby with his not-so-blushing bride Liz (Tina Fey).