Parenthood already has one of the biggest casts on network TV, but it's ensemble just keeps growing. Last season added Adam and Kristina's baby daughter, Nora, and saw the return of Sarah's ex, Mark Cyr (Jason Ritter). For Season 4, which premieres on Sept. 11 at 10/9c, the NBC drama has added a few more fresh faces. There's Victor, Julia and Joel's adopted son and, of course, Emmy winner Ray Romano, who will play yet another love interest for the eldest Braverman daughter. "I've been talking to Ray a bunch about his character and he's really excited about doing it," executive producer Jason Katims tells TVGuide.com. "He's a fan."

But Sarah's complicated love life — including whether or not she accepted Mark's surprise proposal — is far from the only obstacle the Bravermans will face. Katims filled us in on Romano's "acerbic" new guy, Amber's promising new romance, Julia's tough juggling act and whether there's another new Braverman baby on the way for Crosby (Dax Shepard) and Jasmine (Joy Bryant). As usual, it sounds like you should have your Kleenex ready....

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