Parker Posey, Amy Sedaris

Parker Posey and Amy Sedaris, who play Eli Gold's ex-wife and work rival, respectively, will return to The Good Wife in a special sweeps episode that will bring back many of the legal drama's biggest guest stars, TVGuide.com has confirmed.

Rita Wilson, Edward Herrmann, The Big C's John Benjamin Hickey, Renee Elise Goldsberry and Jack Carpenter will all reprise their roles in the same hour, as first reported by Entertainment Weekly.

The Good Wife exclusive: Court is back in session for Denis O'Hare

Denis O'Hare, whose return was previously reported by TVGuide.com, will also return to the bench as Judge Abernathy in that episode, set to air Feb. 19. Frequent Glee guest star Jonathan Groff will also appear.

In the episode, Lockhart & Gardner lead a class action suit against a software company that let the Syrian government "disappear" U.S. citizens.

The Good Wife airs Sundays at 9/8c on CBS.