The Big Bang Theory said goodbye to a beloved character last night, Howard’s mom Mrs. Wolowitz’s, but her death will have some long-lasting impressions on the hit CBS comedy and the characters at its heart. Carol Ann Susi, the voice of Mrs. Wolowitz’s who was never seen on screen, passed away in November 2014 and her character also passed away suddenly in the Thursday, Feb. 19 episode of The Big Bang Theory. The show decided to kill the character off rather than send her away, which would have felt “false and fake.”