Marlo Thomas, Leisha Hailey and Constance Zimmer are among the actors waiting in the wings to guest star on The New Normal, the new NBC comedy from Glee creator Ryan Murphy.

In the show, David (played by Justin Bartha, The Hangover) and Bryan (Andrew Rannells, Broadway's Book of Mormon) begin their quest to start a family as Goldie (Georgia King) and her daughter escape the clutches of her overbearing and homophobic grandmother (Ellen Barkin) from small town Ohio to Los Angeles.

The down-on-her-luck single mom arrives just in time to help the couple fulfill their dream.

The Hollywood Reporter quoted Murphy as stating that Marlo Thomas will show up possibly around episode 10 (to air sometime in November).

“I want her to play the opposite of what she's always played in her career and she loves that idea,” he said. “I want her to be Ellen Barkin's mentor and I want her to sort of run this real estate agency.”

The show will also debut a lesbian couple next week, played by Leisa Hailey (The L Word) and Constance Zimmer (Entourage).

“We thought it was important that all sides of the gay community have stakes in the show,” Murphy said.

David and Bryan will ask the couple to be the godparents to their unborn child.