![The Good Wife Scoop: Maura Tierney Joins Season 4 Cast as [Spoiler]](http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png "The Good Wife Scoop: Maura Tierney Joins Season 4 Cast as [Spoiler]")
Peter Florrick has a secret weapon in his bid to become governor: Maura Tierney.
CBS’ The Good Wife has tapped the ER vet to join the Season 4 cast in the recurring role of Maddie, a self-made billionaire who started her own Internet company and is the doyenne of Chicago Democratic politics. As such, Eli eagerly pursues her money and endorsement for Peter’s campaign.
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Tierney — who for half of ER Season 6 overlapped with Good Wife lead Julianna Margulies, playing Abby Lockhart to her Carol Hathaway — is slated to appear in as many as 10 episodes of the acclaimed CBS drama.
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Tierney’s recent TV credits include an arc on Rescue Me, the ABC legal drama The Whole Truth and a guest star appearance on The Office.
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