Brian Baumgartner – who played lovable Kevin Malone on The Office – married girlfriend Celeste Ackelson on Saturday, April 26, his rep confirmed to Us Weekly.

The wedding was held in the actor’s backyard and a reception followed at the Wilshire Country Club in Los Angeles.

His former Office costars Jenna Fischer, Angela Kinsey, John Krasinksi (with wife Emily Blunt) and Oscar Nunez were on hand to witness the actor’s nuptials.

Baumgartner, 41, is well-loved and best-known for playing deadpan Kevin Malone on The Office from 2005 until the series ended in 2013.

He’s also appeared in Mike & Molly, Hot in Cleveland, and the film License to Wed.

Star of The Office US Brian Baumgartner has married his girlfriend Celeste Ackelson. http://t.co/YJUZ55xxXN pic.twitter.com/joP5yWvKLL

— BBC Newsbeat (@BBCNewsbeat) April 28, 2014

It’s not surprising so many cast members showed up to celebrate with Baumgartner since he told PEOPLE he considers his Office co-stars to be a “second family” to him.

“We’ve all grown up together. Our lives have changed together. We’ve seen weddings and divorces and kids, success and failure,” said Baumgartner.

#TheOffice star @BBBaumgartner is officially a married man! See the pics —> http://t.co/77O4S1NEYU #OfficeReunion

— Radar Online (@radar_online) April 28, 2014

This is the second marriage for the star who has a daughter with previous wife Julia Fisher.

Image via YouTube