<Tr> <Th> Occupation </Th> <Td> Actress </Td> </Tr> <Tr> <Th> Years active </Th> <Td> 1974--2014 </Td> </Tr> <P> Carol Ann Susi (February 2, 1952--November 11, 2014) was an American actress . She was known for providing the voice of recurring unseen character Mrs. Wolowitz on the television series The Big Bang Theory . </P> <P> Susi made her first screen appearance in Kolchak: The Night Stalker . Other television and film credits included: McMillan & Wife, Coyote Ugly, Just Go with It, The Big Bang Theory, Becker, Grey's Anatomy, That' 70s Show, Out of Practice, Cats & Dogs, Just Shoot Me, Married...with Children, Night Court, The King of Queens, Death Becomes Her, Seinfeld, The Secret of My Success, My Blue Heaven, and Sabrina, The Teenage Witch . She also had extensive experience in live theatre and voiced a character on the video game installment of CSI: NY . </P>

Who plays howard's mother on the big bang