Taking a break from his day job at 'The Event,' Jason Ritter is returning to 'Parenthood.'

According to TVLine, Ritter will be back for one episode. Lauren Graham's character, Sarah, seeks advice from her former beau, Mark, played by Ritter.

"We're very excited to have him back," Jason Katims, 'Parenthood' executive producer, said. "Sarah comes to him for advice about something. It's only a few scenes, but what's nice about it is you see that they still have this amazing connection. They are great together."

In other casting news ...

• The mayor of Cincinnati will appear on 'Undercover Boss.' Mark Mallory's episode has yet to be scheduled for airing. [WLWT]

• Martha Plimpton is in talks to return to 'The Good Wife.' The 'Raising Hope' star appeared in two episodes last season and may return this spring. [Entertainment Weekly]

• Robin Givens will appear on 'Chuck.' Givens will appear in multiple episodes as an agency head who makes an offer to Casey. 'Supernatural' and 'The Vampire Diaries' actress Lauren Cohan will recur on the series as Vivian, a socialite and daughter of a criminal mastermind. [TVLine]

• Carson Daly is in talks to host NBC's new singing competition series 'The Voice.' No word on the four celebrity judges/mentors. [Deadline Hollywood]

• The reality show based on a game of catch, 'Catch,' will be hosted by Jerry Rice. Alongside Rice will be comedian Michael Kosta and newcomer Rob Gleeson. [Deadline Hollywood]

• Michael J. Fox will return for not one, but two episodes of 'The Good Wife.' Fox already filmed his second appearance; the third one will happen toward the season finale. [TVLine]