Steve Granitz / WireImage 1 / 4
Steve Granitz / WireImage 1 / 4

Baby's got a name! Less than one week after giving birth to a happy, healthy baby girl, Rachael Leigh Cook and her husband, Daniel Gillies, exclusively tell Us Weekly that they've decided upon a name: Charlotte Easton Gillies!

Cook, 34, and Gillies, 37, welcomed their bundle of joy to the world on Sept. 28 at 9:02 a.m. at 6 lbs., 15 oz, the couple reveals.

PHOTOS: Young Hollywood moms

"It's a girl. The tiny new empress of my everything," proud father Gillies shared his endearing thoughts with fans on Sept. 29. "She's immaculate. We're delirious." This is the first child for both parents.

And both Cook and Gillies will have their hands full this fall, with Cook currently filming TNT series "Perception" (she plays special agent Kate Moretti), and Gillies playing Elijah in new "Vampire Diaries" spinoff "The Originals" (which premiered on Oct. 3).

PHOTOS: Celebrity pregnancy confessions

Us Weekly exclusively broke the news of the couple's expectant news in May. "I've been hiding my rapidly growing bump while shooting but this kiddo is vying for screen time," the actress told Us at the time. "We clearly have a future actor on our hands."

Cook and Gillies, who appeared together on Showtime's "Broken Kingdom" in May, tied the knot in August 2004.

PHOTOS: Celebrity baby names revealed!

"A lot of people are asking whether I'd prefer a boy or a girl," he told Us at the time. "In truth, it doesn't matter to me -- I just can't wait to meet little Keanu Robocop."


Insured celeb body parts

Most expensive celeb engagement rings

Kim Kardashian's tightest looks