What is carol ann susi?

Carol Ann Susi (February 2, 1952 – November 11, 2014) was an American actress, best known for voicing the character of Mrs. Wolowitz on the television show, "The Big Bang Theory". She had started her career as a stage actress and had also made appearances in various TV shows and movies such as 'The Newhart Show', 'Cheers', 'Seinfeld', 'That '70s Show', and 'Grey's Anatomy'. She passed away on November 11, 2014, due to cancer at the age of 62.