The Office actor Brian Baumgartner has tied the knot with his girlfriend Celeste Ackelson.

Us Weekly exclusively reveals that Baumgartner and Ackelson were married on April 26. The couple got married in Baumgartner's backyard at 5 p.m. and then went to another spot for their wedding reception. Celebrities who were in attendance included Baumgartner's former co-star Jenna Fischer and former Gossip Girl star Jessica Szohr.

Baumgartner is most recognized for his role of Kevin Malone on The Office. Baumgartner has also been in shows and movies and such as Mike & Molly, Hot in Cleveland and License to Wed. This is Baumgartner's second marriage. He was formerly married to Julia Fisher, and they share one child together.

TMZ reveals how Baumgartner's wedding was a reunion for the cast of The Office. In addition to Jenna Fischer, Angela Kinsey, John Krasinksi and Oscar Nunez were in attendance at the wedding as well.

People tells how Baumgartner considers his The Office co-stars to be a "second family" to him. Last year, Baumgartner said, "We've all grown up together. Our lives have changed together. We've seen weddings and divorces and kids, success and failure."