06/07/2012 01:53 pm ET

Jason Ritter To Return To 'Parenthood' Season 4 And More Casting News

Sarah Braverman isn't done with Mark quite yet.

According to TVLine, Jason Ritter will return for season 4 of "Parenthood" as Mark, Sarah's (Lauren Graham) love interest after Season 3 of the series ended in Mark proposing to Sarah.

“As far as I understand, they want to keep me around, and we’ll do as many episodes with me as we can all do,” Ritter told TVLine of the NBC series, adding that won't be a series regular. "There are so many regulars that I think that they would probably drop people before they’d add people."

In other casting news...

Eddie Cibrian and Michael Beach are headed to Hallmark. The actors are set to star in "Playing Father," a film that focuses on a well-known musician (Cibrian) who comes home to teach music and be with his family. Beach is set to play a custodian in the school where Cibrian works. [THR]

"Men At Work" has nabbed Alexandra Breckenridge. The "American Horror Story" and "True Blood" is set to guest star in an early July episode of the TBS comedy as Katelyn, a young woman who continuously blows off Tyler (Michael Cassidy). [TV Guide]

John Wellner will be a series regular on "CSI." Having appeared in over 60 episodes of the CBS crime drama, Wellner has finally nabbed a series regular role as toxicology specialist Henry Andrews. [THR]