Hosted by Tony winner Julie White, the Gala will be held at The Edison Ballroom Nov. 18.
Attendees will include Jayne Atkinson, Becky Ann and Dylan Baker, Adam Chanler-Berat, Patricia Clarkson, Blythe Danner, Michael Greif, John Benjamin Hickey, Rupert Holmes, Scott Landis, Heather Lind, Kathleen Marshall, Terrence McNally, Alessandro Nivola, David Hyde Pierce, Chita Rivera and Susan Stroman.
Ellis has directed nine productions at Williamstown Theatre Festival in the last 15 years, including The Elephant Man and The Understudy, as well as Arthur Miller’s The Man Who Had All the Luck and The Rainmaker. The six-time Tony nominee's Broadway credits include The Mystery of Edwin Drood, Harvey, Curtains, The Little Dog Laughed, Twelve Angry Men, She Loves Me and Picnic.
Ellis, an Emmy nominee, has also directed the TV shows "2 Broke Girls," "Weeds" and "Modern Family."
For more information about Williamstown Theatre Festival, visit wtfestival.org.