By Matt Donnelly
1:57 PM PST, December 19, 2012
James Marsden's "30 Rock" character is attempting adoption with his love interest Tina Fey — but off-screen the hunky actor is reportedly a father again.
Marsden welcomed a baby boy with Brazilian model Rose Costa last week, according to People.William Luca Costa-Marsden arrived on Friday, and while the parties are no longer an item, Marsden is said to have helped with name selection and remains "very supportive" of mom and baby.
Marsden also counts 11-year-old Jack and 6-year-old Mary with ex Lisa Linde.
Next year will see the actor help "Rock" say goodbye on Jan. 31. Toward year's end he'll turn up in Lee Daniels' awards bait "The Butler," playing John F. Kennedy alongside Minka Kelly as Jackie.
The ensemble cast also includes Oprah Winfrey, Forest Whitaker, Jane Fonda, Melissa Leo and Mariah Carey, to name a few.
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