The NBC comedy series Parks and Recreation has found its "Tammy 1,' with actress Patricia Clarkson coming aboard to portray the mysterious character.

"Tammy 1" is the first ex-wife of Nick Offerman's Ron Swanson, who was shown from behind in the Season 3 finale back in May. Megan Mullally portrayed "Tammy 2," Ron's second ex-wife, although "Tammy 1" will be a much different character. Here's what executive producer Michael Schur had to say about the role.'

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"We talked about pretty much every possible iteration of who she is and what her backstory is and all we knew is that we didn't want to do the same thing we did with Tammy 2. Tammy 1 is her own specific brand of demon. I think we came up with backstory for her that's both funny and illuminating and also answers all of the questions that you would have when seeing people's reactions to her presence in the finale."

Patricia Clarkson is said to appear in two episodes of Parks and Recreation's upcoming fourth season, including the season premiere on Thursday, September 22 at 8:30 PM ET on NBC.