According to EW, "Grey's" alum T.R. Knight is joining the CBS drama's impressive slew of Season 4 guest stars as a political operative.
Other "Good Wife" guest stars this season include Nathan Lane, Stockard Channing and Maura Tierney.
In other casting news...
Laurie Metcalf is on her way to "The Goodwin Games." The former "Roseanne" star will appear on multiple episodes of the Fox series as Henry's (Scott Foley) boss. [TVLine]
A "Sons Of Anarchy" actor will appear on "Raising Hope." Christopher Douglas Reed will guest star on Fox's "Raising Hope," coming "face to face" with Jimmy (Lucas Neff) and Barney (Gregg Binkley). [THR]
it's a "Knots Landing" reunion on "How to Live With Your Parents (for the Rest of Your Life)." CBS soap vet Michelle Lee will reunite with showrunner Claudia Lonow to guest star on an episode of ABC's midseason comedy. [THR]