The parties at Dunder Mifflin have stopped, but The Office still had an unofficial holiday get-together.

Several stars of the NBC sitcom that aired from 2005 to 2013, including Jenna Fischer (Pam), Angela Kinsey (Angela), Ellie Kemper (Erin), and Mindy Kaling (Kelly), on Friday shared photos from a festive reunion.

"It's been 20 years since I first met these beautiful women!" Kaling captioned a snapshot of the four looking festive. "This year was a rollercoaster to say the least, and it’s so nice to be able to unpack life’s joys and challenges with people who knew me when I was a 24 year old customer service rep in the Scranton branch of Dunder Mifflin. I love you guys!"

Kemper, who joined the Emmy-winning series in its fifth season, playing the Scranton branch's new receptionist, after regular receptionist Pam left, noted that the other actresses had "welcomed me with warmth and kindness."

The reunion was impromptu, according to Fischer.

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"When we realized we were all in the same city at the same time we knew we had to make this happen," Fischer wrote. "Thank you ladies for making me laugh so much last night and for all being so real and amazing after a hard year. I love so much! (I also love that we all dressed up! Fashion show, fashion show, fashion show at dinner!)"

Kinsey shared a photo of the four friends sitting down, looking much more relaxed and happy than they were attending an Office fete coordinated by her bossy character Angela.

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She declared it "such a fun catch up dinner."

Although, Kinsey and Fischer at least speak often, for their popular podcast, Office Ladies, on which they rewatch and discuss episodes of the NBC favorite, as well as personal news, including Fischer's recent cancer diagnosis.

Angela Kinsey reunites with Office costar Brian Baumgartner in exclusive clip from Confessions of a Christmas Letter

On this week's episode, they interviewed award-winning actress Kathy Bates, who said it was tough adjusting to their way of doing things.

"I did have a problem transitioning from lines that were written and then the improvisation that we were allowed to do," Bates said. "I don't know if I ever really succeeded. I kept getting tripped up on that. But it was a wonderful experience."

She can relive it along with the rest of us during daily reruns.