Melissa McCarthy is expanding her work as a TV producer.

The box office star is developing a family comedy with FoxVariety has learned. She is attached as an executive producer, along with her husband and producing partner, Ben Falcone. Scribes Jim Cashman and Mitch Silpa are co-executive producers.

The untitled half-hour, single-cam comedy follows an unconventional family that is formed when a successful type-A man and his estranged sister, plus her two children, find themselves not only back in each other’s lives but also living under one roof.

Warner Bros. is the studio behind the series that is currently in development, having nabbed a script deal.

The project marks the first to be created by Cashman and Silpa. Both are actors and writers who have ties to McCarthy, having appeared in smaller roles in her films including “The Boss,” “Bridesmaids,” “Spy” and “The Heat.” Cashman is an alum of “Saturday Night Live” and Silpa has penned comedy shorts.

For McCarthy and Falcone, the potential series marks the second recent TV project following “Nobodies,” which was recently greenlit at TV Land. The producing duo is repped by CAA.

In front of the camera, McCarthy is gearing up for her series return with Netflix’s “Gilmore Girls” revival, which marks her first small screen appearance since her CBS comedy “Mike & Molly” was cancelled after six seasons. This summer, she starred in the female reboot of “Ghostbusters,” and among her film projects coming up is comedy flick “Life of the Party.”