The annual event is produced by Broadway Cares/Equity Fights AIDS.
Directed by Scott Schwartz, the new musical based on the 1996 Disney film, plays Paper Mill Playhouse.
Amanda Seyfried of Big Love and Mamma Mia! will replace her in the two-actor romantic comedy at Second Stage Theatre.
Ethan Slater, Beth Stafford Laird, and more will also take part.
The production features incidental music by Duncan Sheik.
The world-premiere cast of Tuck Everlasting will perform in celebration of his illustrious Broadway career.
The Somewhere Project will include a professional production of the classic musical.
Parsons will star in David Javerbaum's new comedy, An Act of God.
Michael Greif will direct Law & Order's Sam Waterston in The Tempest.
The comedy will make its official off-Broadway premiere this spring at New World Stages.