<P> Tierney returned to television, playing the recurring character Kelly McPhee on the FX series Rescue Me in 2009 and 2011 during its final season . She replaced Joely Richardson as the female lead of the 2010 ABC television series The Whole Truth after Richardson dropped out to spend more time with her family . Tierney's role in the show, a legal drama produced by Jerry Bruckheimer, marked her return to television after recovering from breast surgery and cancer treatments . ABC canceled The Whole Truth after four episodes owing to low ratings . </P> <P> In February 2011, Tierney made her debut at the Gate Theatre in the Dublin premiere of Yasmina Reza's God of Carnage (translation by Christopher Hampton) alongside Ardal O'Hanlon . </P> <P> In September 2012, Tierney began a recurring role on the CBS legal drama The Good Wife, playing Maddie Hayward . </P> <P> In 2013, Tierney joined the cast of Showtime's The Affair, playing Helen Solloway . The Affair began airing in October 2014 . </P>

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