The 5:30 PM benefit, to be held at the Matilija Auditorium on April 28, is titled "Body and Soul: An OPC Cabaret." OPC artistic director Robert Egan has created the evening, which he will also direct.
In addition to Harden, Mullally, Quinto and Weber, the evening will include Patrick J. Adams, Nick Offerman, Noah Wyle and more to be announced.
Following the cabaret, guests will be treated to music, martinis, a gourmet dinner prepared by celebrity chef Michael Hollingsworth, and the 2012 OPC Awards, honoring Cain and Delany, who is also an OPC board member.
Cain's plays How To Write a New Book for the Bible, Equivocation and 9 Circles were developed at Ojai.
Emmy winner Delaney can currently be seen in the ABC television series "Body Of Proof." Her credits also include "Desperate Housewives," "China Beach," "Tombstone," "Exit to Eden, "Resurrection" and more.
For tickets, beginning at $90 (show only), visit OjaiPlays.