'Gossip Girl' Casting News: Serena's Long-Lost Dad Has Been Found!

By Cara Alwill

Where in the world is William van der Woodsen? That’s the question that’s been on everyone’s mind — especially Serena’s (Blake Lively) — as the mid-season of "Gossip Girl" came to a close in December. The sexy socialite spent the end of season two in Europe hunting for her long-lost father and then a mysterious letter from him appeared in the wrong hands (cough... Rufus... cough cough). Now, EW now reporting that we may have a few clues as to who he is (at least in real life).

Sources confirm to EW that actor Billy Baldwin will play Serena’s estranged father in at least three episodes, which are slated to run in April. Last time we saw Billy (who is the second youngest of the four famous Baldwin brothers, including "30 Rock" star Alec and "Celebrity Apprentice" contestant Stephen), on TV, he was a New York City senator having an affair with a transsexual in ABC's "Dirty Sexy Money." At least he already knows a thing or two about the messy politics of Manhattan's elite crowd!

So, what can we expect of this deadbeat dad? Rumors are swirling that his past relationship with Serena's mommy, who now has the longest last name on the face of the Earth, Lily Rhodes van der Woodsen Bass Humphrey (Kelly Rutherford) is going to be a big part of the character's plot line, and E! is hearing that he'll be coming between Lily and Rufus (Matthew Settle).

It’s an interesting choice of casting, considering Billy has been married for over 15 years and is not exactly the home-wrecking character he’s scheduled to play on the show. Perhaps one of the other Baldwin brothers might have been a more fitting choice? Zing!

What do you think about Billy as Serena's dad? Sound off in the comments section below!