Aaron Staton Aaron Staton

The Good Wife is going mad! TV Guide Magazine has learned exclusively that Aaron Staton, who plays Ken Cosgrove on the AMC series Mad Men, will make a May sweeps visit to the CBS drama. We're told he's a "hungry, Terminator-like" attorney with a disarming smile. And he's not on Lockhart Gardner's side.

Look for equally ruthless opposing lawyers Patti Nyholm (Raising Hope's Martha Plimpton) and Nancy Crozier (Off the Map's Mamie Gummer) to return before The Good Wife's season finale.

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