Wilma Jeanne Cooper

 Wilma Jeanne Cooper (October 25, 1928 – May 8, 2013)

She was best known for her role as Katherine Chancellor on the CBS soap opera The Young and the Restless (1973–2013). At the time of her death, she was eighth on the all-time list of longest-serving soap opera actors in the United States. She was the mother of actor Corbin Bernsen. Cooper was a fixture on episodic television throughout the 1950s and 1970s. She made five guest appearances during the nine-year run of CBS's Perry Mason. Cooper also appeared in The Twilight Zone, Hawaii Five-O, Mannix, Ironside, Storefront Lawyers, The Silent Force, Touched by an Angel, Gunsmoke, The Untouchables, and many other series. Cooper had to take a medical leave in October 2011 on Young and the Restless and her part on the soap was temporarily recast with veteran actress Michael Learned. However, the next month, she confirmed she was returning to the set. She returned as part of the show on December 23, 2011. She filmed her last scene on the show in March 2013 on the same day as the Young and the Restless 40th anniversary and this scene aired on May 3, 2013, five days before her death from an infection. Cooper was 84 years old.