The play centers on two suburban couples who have more in common than their identical homes and the same last name on their mailboxes.
The production will feature sets and costumes by David Zinn, lighting by Mark Barton, and sound by Ken Goodwin.
Day is a Tony Award nominee for Proof. Fitzgerald earned a Lucille Lortel Award nomination for Lobby Hero. Letts is perhaps best known as the Pulitzer Prize-winning playwright of August: Osage County but has numerous acting credits, as well. Posey is a stage and screen star whose New York theater credits include Hurlyburly, Fifth of July, and Taller Than a Dwarf.