who is howard's mother on big bang theory
Carol Ann Susi -- one of the central characters on The Big Bang Theory -- died Tuesday after battling cancer ... according to execs on the hit show. Susi played Howard Wolowitz's mom who almost NEVER appeared on camera -- but whose voice was heard in just about every episode. 'Big Bang' executive producer Chuck Lorre said ... The Mrs. Wolowitz character became a bit of mystery throughout the show's eight seasons.