“... brilliantly yoked to the current American moment.

The New Yorker

“One of the funniest plays to open this year”

The New York Times


By Jonathan Spector 
Directed by Serge Seiden 
At the Atlas Performing Arts Center
Featuring Regina Aquino, Lise Bruneau, Erica Chamblee,
Sam Lunay, and Elan Zafir 
December 4, 2019–January 5, 2020
All dates are subject to change


At Eureka Day School in Berkeley, all decisions are made by consensus, diversity and inclusion are valued, and vaccinations are a personal matter. When a mumps outbreak hits the school, it turns out that not everyone in the community has the same definition of social justice. Now the board of directors must confront the central question: how do you find consensus when you can’t agree on the facts? A comedy for our moment!

The New York Times Feature: Can a Play About Vaccines Be a Laughing Matter?

Lead Underwriter: Marvin F. Weissberg



Donate Children's Books

Donations of gently used children's books can be dropped off until December 1 during business hours at the Atlas Performing Art's Center Actors Lobby or at the Mosaic Theater subscriptions table during performances of Theory. Books will be donated to local elementary schools after being used on the set of Eureka Day. For more questions, contact drew@mosaictheater.org.

Be a part of Eureka Day in a cameo appearance opportunity

Ever wished you could experience Mosaic from the stage? Now's your chance! Apply now and be one of the few lucky audience members that will get the chance to appear alongside the cast in a cameo role in Eureka Day. To apply, contact serge@mosaictheater.org.


"Eureka Day is...one of the funniest plays to open this year"

The New York Times

"Jonathan Spector’s lively portrait of a debate over mandatory vaccinations is the perfect play for our age of disagreement."

The New York Times

"Uproarious! Jonathan Spector's play is so crisply defined that you might have to periodically remind yourself that you haven't already met these characters in real life..."

San Francisco Chronicle

"So brilliantly yoked to the current American moment... that it makes you want to jump out of your skin... Electrically funny."

The New Yorker



indicates a post show discussion immediately following the performance





Click on each artist for more information

Andrew Cohen

Set Designer

Deb Thomas

Properties Designer

April E. Carter*

Stage Manager

Brittany Shemuga

Lighting Designer

Dylan Uremovich

Projections Designer

Brandee Mathies

Costume Designer

David Lamont Wilson

Sound Designer


Intimacy Coordinator

Shirley Serotsky


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Atlas Performing Arts Center

1333 H Street NE

Washington, DC 20002


202-399-7993 ext 2


Monday-Friday, 11 AM to 2 PM; 3 PM to 6 PM

In person: 2 hours prior to show on show days

Box office does NOT take calls two hours prior to a show's curtain, but will return all voice messages left during that time.

Will Call opens one hour prior to curtain.

Patrons who arrive late will be seated at the discretion of management.