Eric Ladin and Katy Ladin attend the Red CARpet event on September 8, 2012 in Beverly Hills, California. Credit: Rachel Murray/WireImage

Eric Ladin and his wife have even more to celebrate this holiday season: they're officially parents!

The Killing star's spouse Katy gave birth to a son, Maxfield David, on Friday, Dec. 21, the proud papa, 34, announced on Twitter Saturday.

"Wow! The last 24 hours have been the best of my life. Forever changed, I am now a father [to] Maxfield David Ladin," the actor wrote, sharing a precious portrait of his first child with the stylist and fashion designer.

Best known for his role on AMC's The Killing, the new dad has also appeared on Law & Order: Special Victims Unit, as well as Suits and Justified.

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