His sister Debbie runs a combination yoga studio/vegan restaurant with her husband Adam, with whom she has a daughter named Mikayla.

As the series begins, Nathan and Debbie's bickering parents, Tom and Carol Miller, are returning from Myrtle Beach.

[16] Margo Martindale was the next actor cast, in the series regular role of Carol Miller, Nathan's vibrant but meddlesome mother.

[18] Shortly after, Mary Elizabeth Ellis signed onto the role of Debbie, Nathan's happily married sister.

[19] In early March, Beau Bridges joined the series as Tom Miller, Nathan's father, who moves in with Debbie.

[22][23] Shortly after the series order, Mary Elizabeth Ellis and Michael Rapaport exited the roles of Debbie and Adam.

[27] For the second season, Sean Hayes signed on for the series regular role of Kip Finkle, Carol's new best friend.