Aaron Staton to Guest Star on The Good Wife

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Before its season concludes, The Good Wife will welcome back a couple recurring players and one intriguing guest star.

Second things first: Aaron Staton, best known as Ken Cosgrove on Mad Men, will guest star on an upcoming episode of this CBS drama as a lawyer who goes up against Lockhart Gardner. Look for him to appear in May, TV Guide reports.

Also on tap at some point prior to the finale? The returns of Patti Nyholm (Martha Plimpton) and Nancy Crozier (Mamie Gummer).

The Good Wife returns with a new episode on Tuesday and you can get an early look at it NOW.

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