Tony nominee Thomas Sadoski will costar in the world premiere of Neil LaBute's The Way We Get By.
The dark comedy is set to transfer with its full MCC Theater cast intact.
Many American Repertory Theater original cast members will also participate.
The rock musical's original Tony-nominated star Constantine Maroulis extends his stay with the production.
The American composer's life story will be dramatized at the Los Angeles theater.
The Pulitzer-winning collaborators are at work on their latest musical.
The event will also feature appearances by Danny Burstein, Raúl Esparza, Boyd Gaines, and others.
The modern Romeo and Juliet tale will head to Staten Island.
Redgrave previously performed in an adaptation of Didion's earlier memoir The Year of Magical Thinking.
The long-running musical will get a new Christine and Madame Giry.