Simon Jones will serve as master of ceremonies and introduce the evening's entertainment and live auction.
There will be an original musical tribute performed by members of the company and special surprise guests. Gillian Berkowitz will serve as the evening's musical director, and Scott Alan Evans will direct the evening.
Garber has received four Tony Award nominations, for Damn Yankees, Lend Me a Tenor, Little Me, and Deathtrap, and recently appeared in the Roundabout Theatre Company's production of Present Laughter. His many film and television credits include Godspell, Alias, and Eli Stone, and he will guest star this season on The Big C.