Melissa McCarthy, Billy Gardell

Mike & Molly will be back for a fourth season, but its showrunner won't.

Creator Mike Roberts is stepping down as showrunner for the CBS comedy after three seasons, Deadline reports.

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Chuck Lorre will remain executive producer, and co-executive producer Alan J. Higgins ('Til Death, Malcolm in the Middle) will replace Roberts.

Mike & Molly will return as a midseason show on CBS' fall schedule, it was announced last week.

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