Darren Michaels/Warner Bros
Megan Daley
March 13, 2015 AT 06:10 PM EDT

Jaime Pressly is joining Mom as a series regular beginning next season, CBS announced Friday. The addition follows CBS’ announcement on Thursday that the series has been renewed for a third season. 

Pressly has been guest-starring on the critically acclaimed series as Jill, a wealthy, self-involved divorcee. In and out of rehab, Jill relies on the support of her friend and sponsor, Christy, played by Anna Faris. The show, currently in its second season, received its first Emmy win in 2014 for Allison Janney. 

Mom airs Thursdays at 9:30 p.m. ET on CBS. 

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