So much for the Dan-Serena-Nate triangle.

Sam Page, known for roles on Desperate Housewives and Mad Men, is joining the cast of Gossip Girl a multi-episode story arc as Serena’s (Blake Lively) new love interest.

Entertainment Weekly first reported his casting yesterday.

Page’s first episode is expected to fall in October. Might this be the older man Serena begins playing the field with? If so, do you think he's a good choice for our girl?

We've heard that Serena may bring a cute boy back to New York from Paris in Season 4, which begins September 13. Think it's him? Any theories? Comment below ...

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.