Actress and radio personality Tonita Castro died on Mother’s Day, May 8, of cancer. She was 63. Castro is best known for her series regular role on the Fox multi-camera comedy seriesDads and her heavily recurring role on NBC’s single-camera comedy seriesGo On. She most recently did a recurring guest arc on the freshman CBS comedyLife in Pieces and guest starred in the pilot for the new Fox comedy The Grinder. Castro came to the United States from Mexico in the late…