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Maura Tierney is returning to TV after battling breast cancer.

The former ER star will reprise her role as Denis Leary's love interest Kelly McPhee on Rescue Me, reports.

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Leary tells that Tierney, 45, is already taping scenes, but they won't appear until Season 7 airs in 2011.

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The actress dropped out of NBC comedy Parenthood last September to undergo treatment. She returned to the stage in February, appearing in North Atlantic in Los Angeles..

"[Tierney] has finished treatment and is doing very well and is happy to move forward with the next phase of her life," Christina Papadopoulos, Tierney's rep, said in a statement.

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Tierney received an Emmy nomination for playing Dr. Abby Lockhart for 10 years on NBC's ER.