The following people are credited as replacements or additions if they were not credited on opening night.

Additional Percussion Arrangements by Damien Bassman.

Company Manager: Eric Cornell(Jul 19, 2010-Aug 22, 2010), Lisa Koch Rao(Aug 23, 2010 - ?).

Stage Manager: Shawn Pennington(Jul 19, 2010 - ?); Assistant Stage Mgr: Alex Lyu Volckhausen.

Cello: Alisa Horn(Apr 16, 2010 - ?); Drums/Percussion: Shannon Ford.

Jason Danieley	Dan	(Jul 19, 2010 - ?)
Meghann Fahy	Natalie	(Jul 19, 2010 - ?)
Brian d'Arcy James Originated this role in the original Off-Broadway premiere	Dan	(May 17, 2010-Jul 18, 2010)
Kyle Dean Massey	Gabe	(Jun 9, 2009-Sep 6, 2009)
	Gabe	(Jan 4, 2010 - ?)
Marin Mazzie	Diana	(Jul 19, 2010 - ?)

Understudies: Joe Cassidy (Dr. Madden/Dr. Fine), Brian Crum (Gabe, Henry), MacKenzie Mauzey (Natalie), Sarah Uriarte Berry (Diana).