Larry Daggett (Ragtime, Candide), Kimberly Faye Greenberg (Danny and Sylvia, OneNight with Fanny Brice), and Erin Mackey (Wicked, Sondheim on Sondheim) are set to star ina one-night-only performance of Irving Berlin's last Broadway musical Mr. President, presented July 18 in Manhattan to benefit the Actors Fund.