People.com tells us that Sex in the city actor  Willie Garson is  a  father after finalizing  his sons adoption that he began a year ago . His son Nathen is 8 years old .The adoption, fostered by The Alliance for Children’s Rights and Westside Children’s Center, was finalized in Los Angeles on Wednesday, the Sex and the City actor, who currently stars on the USA Network’s White Collar, told PEOPLE exclusively.

“From the first time I met him, I said, ‘That’s my kid,’ ” says Garson, 45. His biggest challenge so far as a single parent? Helping Nathen with his homework.  I am sure Willie will have lots of fun shopping for childrens clothes for his son. I know I would be over the moon and shopping the minute I got a chance to.

“He’s in third grade, and I’m in the third grade,” jokes Garson, who reprises his role as Stanford Blatch – the best guy pal of Carrie Bradshaw (Sarah Jessica Parker) – in the upcoming Sex and the City 2, which hits movie theaters May 28