Susan `` Susie '' Essman ( born May 31 , 1955 ) is an American stand-up comedian , actress , writer and television producer , best known for her role as Susie Greene on `` Curb Your Enthusiasm '' and the voice of Mittens in `` Bolt '' .
Susan `` Susie '' Essman ( born May 31 , 1955 ) is an American stand-up comedian , actor and voice artist . She plays Susie Greene in `` Curb Your Enthusiasm '' , Helen Higgins in `` Crank Yankers '' , and Mittens in `` Bolt '' .