Tony-winning Hairspray producer Margo Lion will be the guest of honor at the annual event.
Kathleen Chalfant and Paul Niebanck have been cast in Blessing's A Walk in the Woods.
David Grimm's new play also features Kathleen Chalfant and Michael Esper.
Award-winning Broadway veterans Nina Arianda and Kathleen Chalfant lead the cast.
Gabrielle L. Kurlander directs this world premiere by Clare Coss.
Broadway's Jacqueline Antaramian and Richard Topol will also take part in the event.
Chalfant joins Tony winner Nina Arianda in the world premiere of David Grimm's new play.
The costars of last season's Somewhere Fun shared the role of emcee at the yearly gathering.