Characters who did not appear on camera, but spoke from other rooms or announced on television, radio or answering machines. Carol Ann Susi as Mrs. Wolowitz (Voice Only) (2007-2014) Howard's never seen over-bearing mother. Kimberly Brooks as Automated Cell Phone (Voice Only) The Dumpling Paradox from Howard and Christy's phone message. Jennifer Hale as News Announcer (Voice Only) The Lizard-Spock Expansion who announced the Mars Rover problem. Robert Clotworthy as Announcer (Voice Only) The Lizard-Spock Expansion who announced the discovery of life on Mars.