Peter Tolan, Sean Hayes Peter Tolan, Sean Hayes

Rescue Me co-creator Peter Tolan and his writing partner Michael Wimer have joined Sean Hayes' upcoming NBC sitcom about two gay dads, Entertainment Weekly reports.

The untitled project, which was first announced two weeks ago, will star Hayes as half of the couple raising a 12-year-old. Tolan will serve as a writer and executive producer.

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The show will be Hayes' first regular TV gig since Will & Grace, for which he won an Emmy, ended in 2006. The actor is an executive producer on Hot in Cleveland and the new NBC drama Grimm.Tolan, meanwhile, is keeping busy as Rescue Me wraps up its seven-season run. Besides this deal, he is also developing a drama for ABC with Drop Dead Diva's Josh Berman. Tolan's other credits include The Larry Sanders Show and Murphy Brown.