In theatre KT Sullivan has performed in tones of shows like The Threepenny Opera, Gentlemen Prefer Blondes, and Annie Get Your Gun. But it's the world of cabaret that she's made her greatest impact. Since 2012 she's been the artistic director of the Mabel Mercer Foundation and she's made her name showcasing the music of the great American writers – Sondheim, Cole Porter, and Dorothy Fields. She's performed at the Lincoln Center, Carnegie Hall, The Kennedy Center, and internationally in London, Paris, China and Australia. The New York Times described her as a “fearless and complex character actor”.