Jeanne Cooper played Katherine Chancellor on `` Young and the Restless '' Cooper played role for 39 years . Actress is mother of actor Corbin Bernsen . ` Hide Caption
Jeanne Cooper played Katherine Chancellor on `` Young and the Restless '' Cooper played role for 39 years . Actress is mother of actor Corbin Bernsen . `` She was in peace and without fear , '' Bernsen tweeted .