When The Good Wife Season 4 resumes on January 6, viewers will be greeted by a new face.

Who is a very familiar face to Grey's Anatomy viewers.

On "Boom De Ya Da," T.R. Knight will guest star as a savvy campaign manager with whom Eli is forced to work by Democratic strategist Frank Landau. As you can imagine, our favorite fixer is less than pleased about the arrangement.

CBS has released a pair of photos from the first installment of 2013. Click to enlarge these shots of Knight now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.