Original pilot

The pilot of Union Square follows Mel (Mel Gorham), a small time actress who decides to quit her job working at a Miami gift shop and become a Broadway star. Armed with her wits and her large dog named Bird, Mel heads for New York City to stay with her friend Lana. She is later shocked to find that Lana and her boyfriend, Micheal (Michael Landes) broke up, resulting in Lana moving out. Mel tries to reason with Michael to let her stay with him until she can get an apartment of her own. Despite consistently telling her no, she persists and follows him to the Union Square Diner. Michael used to be a lawyer but gave it up to focus on his passion of becoming a playwright, but writes instructional manuals to make money.

At the diner, she meets Carrie, a musician, who works at the diner as a waitress; Suzanne, a snarky real-estate agent; Albie, the other waiter at the diner who can be dim-witted, Jack Pappas, the hunky head chef of the diner who is known for his womanizing, and Vince, the owner of the diner. Mel goes on an audition for a Neil Simon play, but misplaces her lucky locket. She goes to the audition anyway with Michael finding it later on. However, Michael only dropped it off to her as a means of avoiding Lana, who was going to come by the diner to check on Mel. After not only failing to get the part but getting so nervous she throws up on Neil Simon, Mel reluctantly concedes she might have rushed her dreams a little. Michael cheers her up just as Lana comes to the diner. Lana reveals that Michael was not a passionate lover and didn't seem to care about their relationship. Mel helps Michael make Lana jealous and Michael agrees to let Mel stay with him, mostly out of fear for what she might have her dog do to him if he said anything to the contrary.

Changes from the original pilot

After poor test screenings and negative assessments from advertisers for the pilot, the producers retooled the show and replaced Gorham,^[1][2] who played a struggling actress named Mel Suarez, with Constance Marie as Gabriella.^[3] Once Gorham was replaced, the show was retooled into an ensemble cast format. Landes was also later dropped from the program since his plot line was no longer relevant to the show's new premise. The show instead centered on the goings on around the diner and some of the ways the group helped each other with their ambitions, goals or plans.

Main

• Constance Marie as Gabriella Diaz
• Harriet Sansom Harris as Suzanne Barkley
• Jim Pirri as Jack Papas
• Jonathan Slavin as Albie
• Christine Marie Burke as Carrie
• Jeffrey Anderson-Gunter as Vince

Original pilot cast

• Mel Gorham as Mel Suarez
• Michael Landes as Michael