Hosted by Academy, Grammy, Emmy and Tony Award winner Whoopi Goldberg, the event will be held at Pierre Hotel Feb. 3.
Co-directed by Tony Award winner and Drama League alumnus Michael Mayer with Johanna McKeon, the evening will feature performances of musical selections drawn from Harris' career in theatre, film and television.
Guest performers will include Fierstein, McDonald, Malcolm Gets, Anthony Rapp, Krysta Rodriguez, Mary Louise Wilson, Tony Vincent and Karen Ziemba.
They join the previously announced James Barbour, Becky Ann Baker, Katie Finneran, Kate Jennings Grant, Cady Huffman, Eddie Korbich, Marc Kudisch, Aaron Lazar, Norm Lewis, Constantine Maroulis, Lisa O'Hare, Kal Penn, Bryce Pinkham and Lauren Worsham, with a special guest appearance by Tim Gunn.
Harris will star on Broadway in Hedwig and the Angry Inch, beginning performances March 29. He has also performed on Broadway in Assassins and in the New York Philharmonic production of Company. Harris has been honored with four Emmy Awards: three for his acclaimed hosting of the Tony Awards and another for his guest-starring role on "Glee." He also served as host and producer of the 61st and 65th Primetime Emmy Awards.
The black-tie gala supports The Drama League's educational initiatives for promising young artists.
Previous honorees include McDonald, Liza Minnelli, Kristin Chenoweth, Angela Lansbury, Patti LuPone, Andrew Lloyd Webber, Chita Rivera, Rosie O'Donnell and Terrence McNally.
The Drama League’s 2014 Gala Online Auction is now open for bidding at biddingforgood.com/thedramaleague.
Tickets are available by calling (212) 244-9494 or emailing [email protected].