Daniel Zelman, Debra Messing Daniel Zelman, Debra Messing

Debra Messing filed for divorce from husband Daniel Zelman after 10 years together, TMZ reports.

The Emmy winner, 43, cited "irreconcilable differences" in the documents, filed Tuesday in L.A. County Superior Court. Messing is asking for joint custody of the couple's 8-year-old son, Roman. She is also asking Zelman, 44, for spousal and child support.

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Messing and Zelman, an executive producer on Damages, met in graduate school and dated for 10 years before marrying in September 2000. The couple announced their separation last year, but continued living together after the fact.

After their separation, reports stated that Messing had started dating her Smash co-star Will Chase. Their characters carried on an extramarital affair during Season 1.