Men at Work, the new TBS original comedy series from Sony Pictures Television, has begun production in Los Angeles. Created by Breckin Meyer (Road Trip, TNT's Franklin & Bash), the sitcom stars Danny Masterson (That '70s Show, Yes Man), Michael Cassidy (The O.C.), Adam Busch (Buffy the Vampire Slayer), James Lesure (Las Vegas) and Meredith Hagner (Royal Pains).

In addition to starting production, Men at Work has signed up its first guest stars: Stacy Keibler, J.K. Simmons and Kathy Najimy. Men at Work is slated to air on TBS Thursdays at 10 p.m. (ET/PT), beginning with back-to-back episodes on May 24.

Men at Work centers on four buddies who work together at a magazine. Masterson plays the recently dumped Milo, whose friends are determined to help him get back in the dating game. Lesure is Gibbs, a photographer and successful ladies man. Cassidy plays Tyler, a features writer who brings a dose of style and sophistication to the group. And Busch is Neal, a somewhat nebbish reporter and the only one in the group with a steady girlfriend (Hagner). Together, the four friends help each other navigate the treacherous waters of work, friendship and women.

Here are the guest stars set to appear this summer on TBS's Men at Work:

Stacy Keibler will play Keri, a gorgeous girl who hooks up with Milo and Gibbs at a bar and offers them an interesting proposition. Keibler recently starred in Hallmark's Fixing Pete. In addition, she has guest-starred on such series as How I Met Your Mother, Chuck, Psych, NTSF:SD:SUV, George Lopez, What About Brian and October Road. The former Ravens cheerleader also made it to the finals on Dancing with the Stars.

J.K. Simmons will play P.J. Jordan, the stern and demanding publisher of the magazine where the guys work. He also happens to be the father of Neal's girlfriend, Amy. Simmons is a familiar face both on television (as Chief Pope, the gruff commanding officer in TNT's hit series The Closer) and in film (as the understanding father in Juno and boisterous editor J. Jonah Jameson in Spider-Man movies).

Kathy Najimy will play Sasha Ryan, a well-known sex blogger being interviewed by Tyler and photographed by Gibbs, and attracting the attention of both. Najimy is well known for her work on stage in The Kathy and Mo Show; on the big screen in many films, including Sister Act, Soapdish and Hocus Pocus; and on television as Olive on Veronica's Closet, Dr. Mildred Finch on Numb3rs and the voice of Peggy on King of the Hill. Memorable guest star appearances include TNT's Franklin & Bash, Make It or Break It, Desperate Housewives, Mr. Sunshine and Ugly Betty. She can be seen in the upcoming Hallmark film, How to Fall In Love.

Men at Work comes to TBS from Sony Pictures Television and Fanfare. The multi-camera comedy is executive-produced by Breckin Meyer, along with Fanfare's Jamie Tarses (Happy Endings, TNT's Franklin & Bash, TBS' My Boys) and Julia Franz (Scrubs).