The Office's Brian Baumgartner Welcomes a Baby—See the Adorable Photos of His "Latest Project"!

"She told me she looks forward to catching up on all the old episodes of The Office once her eyes adjust to life," he joked

The Office alum Brian Baumgartner has a new "project" and she's just the cutest!

The 42-year-old actor, who played Kevin Malone on the hit NBC comedy series during all nine seasons, and wife Celeste Ackelson, 32, recently welcomed their first child together, a baby girl. The proud dad posted photos of his newborn daughter on social media on Wednesday, a day after the 10-year anniversary of The Office premiere.

"My latest project. 9 months in the making," he said on Instagram, alongside a pic of the baby snuggled up next to his face. "I am happy to announce the arrival of my daughter—Brylee Bea—healthy and very happy. She told me she looks forward to catching up on all the old episodes of The Office once her eyes adjust to life."

My latest project. 9 months in the making. I am happy to announce the arrival of my daughter- Brylee Bea- healthy and very happy. She told me she looks forward to catching up on all the old episodes of The Office once her eyes adjust to life.

A photo posted by Brian Baumgartner (@bbbaumgartner) on Mar 24, 2015 at 6:11pm PDT

He also posted a pic of baby Brylee on Twitter.

My new project. Healthy. Happy. Beautiful. Joy. Please welcome Brylee to the world... then never speak to her again. pic.twitter.com/KhDbRZo7CO

? Brian Baumgartner (@BBBaumgartner) March 25, 2015

He and Ackelson wed last April in front of family and friends, including the actor's The Office co-stars John Krasinski, Angela Kinsey and Jenna Fischer.