The yet-untitled Judah Miller comedy will also feature Tony winner Marissa Jaret Winokur and Greg Grunberg.
In an interview with E! Online, Hilty said, "My character is so fun because she's this big personality with no outlet for her talents. She's finding strange ways to [Laughs.] perform. Like, they're in a LEGO competition in the pilot and she adds a performance element, she adds a song. It's of course embarrassing her family, but they go along with it. And she's singing a lullaby to her song, but as Ethel Merman, so she's actually belting in his face [Laughs.] while he's trying to go to sleep…It's a heartwarming, fun show. I hope it has a life after what we've shot in the pilot, but who knows. Again, this whole TV world—who knows what's going to happen."
The singing actress also revealed that she is currently in negotiations for a yet-unnamed new play and will also be seen this fall in a City Center Encores! concert.
Hilty's Main Stem credits include Wicked and 9 to 5. She starred on the NBC musical drama "Smash" and will be featured in the upcoming one-night-only concert of Bombshell that will take place June 8 at Broadway's Minskoff Theatre.