Filed under 'Kieran Lieberthal'

Name: Kieran Lindsay Lieberthal

Parent: Julianna Margulies & Keith Lieberthal

Date of Birth: January 17, 2008

Siblings: None

Facts:

• Kieran was born in New York City
• He is the first child for both his parents
• Details surrounding his birth have been kept under wraps
• His paternal grandfather is Dr. Kenneth Lieberthal, director of the John L. Thornton China Center and a senior fellow in Foreign Policy and Global Economy and Development at the Brookings Institution, a nonprofit public-policy organization based in Washington, D.C.
• His mother starred in the hit televisions series E.R.
• His father is an attorney

Quotes:

"Obviously I'm utterly delighted to be a grandfather," said Keith's father, Dr. Kenneth Lieberthal, when reached by PEOPLE. "I have to say, he is cuter than any other baby I've seen." - paternal grandfather Dr. Kenneth Lieberthal on his new grandson.

"A beautiful baby boy has been born to us. All is well. His name is Kieran Lindsay Lieberthal. Is that poetry? Do a little dance. Love this day! All is well. God bless! Can't wait to hear from you." - maternal grandmother Francesca on her baby Kieran.

"He's brought a lot of joy to the family. He has some of Keith's features and some of Julianna's features and they're changing everyday. We went down to the hospital to visit them, and I brought the nurse over. I said [to the nurse], 'You better explain to her about post-partum blues,' and the nurse said, 'We already talked about this. She's not going to have post-partum blues.' And I don't think she will." - maternal grandfather Paul Margulies on his grandson.

“Listen, whatever he wants to do I will support wholeheartedly. But I hope he doesn't want to become an actor.” - Juilianna on her hopes for her only child.

"[Kieran] is still getting used to it. He's a year and he doesn't quite understand. He says, 'Mama work.' And I say, 'Yes, Mama is going to work now.' When I was leaving today, he waved bye-bye. Sometimes he gets sad." - Julianna on Kieran's reaction when she leaves for work.