Question: What actor who served as the First Lady of the United States from 1981 to 1989, starred in a film n which a voice claiming to be that of God preempts all radio programs for days all over the world?
Context: Vivian Della Chiesa (October 9, 1915 – January 6, 2009) was an American lyric soprano who achieved a high level of popularity in the United States singing on the radio during the 1940s and the early 1950s.  She performed a wide variety of classical and popular works from opera to musical theatre, jazz, and popular songs.  She sang on a number of radio programs during her career, including "The American Album of Familiar Music", "The American Melody Hour", and "The Standard Hour" among others.  A particularly important triumph for her radio career was a 1943 radio concert of Brahms’s "Deutsches Requiem" with conductor Arturo Toscanini and the NBC Symphony Orchestra.  In addition to her radio career, Della Chiesa performed actively on the opera stage, mostly at the Chicago City Opera Company and the Chicago Opera Company, during the 1930s and 1940s.  In the 1950s, she became a successful nightclub singer, headlining at major clubs in Las Vegas, Reno, and in major venues in other cities throughout the United States.  After her singing career ended she worked as a voice teacher and a fundraiser for charity. Lady Esther was the trademark of a cosmetic manufacturing company founded by German-born Syma Cohen and her siblings in Chicago in 1913 and operated as Lady Esther Company.  It was incorporated in Illinois in 1922 and became America’s top selling brand of cosmetics in the United States.  Its success in large part can be attributed to Syma and her brother Alfred Busiel and their innovative marketing through in-store demonstrations, print advertising and sponsorship of national radio programs.  In 1949 Syma Cohen sold her half share in the company to her brother Alfred and following his death the company eventually was sold.  Subsequently it had a number of owners.  Now a United States company owns the trademark in the United States and a German cosmetic manufacturer owns the business in the rest of the world. The First Lady of the United States is the hostess of the White House.  The position is traditionally filled by the wife of the President of the United States, but, on occasion, the title has been applied to women who were not presidents’ wives, such as when the president was a bachelor or widower, or when the wife of the president was unable to fulfill the duties of the First Lady herself.  The First Lady is not an elected position; it carries no official duties and receives no salary.  Nonetheless, she attends many official ceremonies and functions of state either along with or in place of the president.  Traditionally, the First Lady does not hold outside employment while occupying the office.  She has her own staff, including the White House Social Secretary, the Chief of Staff, the Press Secretary, the Chief Floral Designer, and the Executive Chef.  The Office of the First Lady is also in charge of all social and ceremonial events of the White House, and is a branch of the Executive Office of the President. The Office of the First Lady of the United States is the staff accountable to the First Lady of the United States.  The office and its responsibilities, while not mandated, have grown as the role of the First Lady has grown and formalized through the history of the United States.  The Office of the First Lady is an entity of the White House Office, part of the Executive Office of the President. In the United States, the first spouse (first lady for women, first gentleman for men) is the term used to refer to the spouse of a chief executive - that is, of the spouse of the President of the United States (the First Lady of the United States and the First Gentleman of the United States) and the spouses of the governors of the 50 U.S. states and U.S. territories (Guam, Northern Mariana Islands, Puerto Rico, American Samoa, and the United States Virgin Islands) and the spouse of the mayor of the District of Columbia.  (The spouses of many mayors are often called the "first lady" or "first gentleman" of the city as well, and the use of the terms sometimes extends even to the spouses of college presidents). Nancy Davis Reagan (born Anne Frances Robbins; July 6, 1921 – March 6, 2016) was an American film actress and the wife of Ronald Reagan, the 40th President of the United States.  She served as the First Lady of the United States from 1981 to 1989. Vicki Risch is the former First Lady of Idaho and the wife of U.S. Sen. Jim Risch, who served as Governor of Idaho in 2006.  She became First Lady on May 26, 2006, when her husband succeeded former Gov. Dirk Kempthorne, who resigned to become United States Secretary of the Interior.  Mrs. Risch succeeded former First Lady Patricia Kempthorne who had held the post for over seven years.  Mrs. Risch served as First Lady until January 2007, as her husband did not seek a full term as governor, but rather was reelected to his old post as lieutenant governor. The Next Voice You Hear... is a 1950 drama film in which a voice claiming to be that of God preempts all radio programs for days all over the world.  It stars James Whitmore and Nancy Davis (who later became Nancy Reagan) as Joe and Mary Smith, a typical American couple.  It was based on a short story of the same name by George Sumner Albee.  The voice is never heard by the (film) audience. Joan Morrissey is widely considered to be "Newfoundland's First Lady Of Song".  Born in St. John's, Newfoundland on January 23, 1933, she was one of ten children.  Entering the workforce at only thirteen years of age, she quickly moved up in the music industry of her home province of Newfoundland.  Starting in the early 1960s, she began her career as a singer hosting and singing on local radio programs on CJON, VOCM, and CBC Radio. Rie Murakawa (村川 梨衣 , Murakawa Rie , born June 1, 1990) is a Japanese voice actress, singer and radio personality from Saitama Prefecture, Japan.  She is affiliated with Tokyo Actor's Consumer's Cooperative Society.  Her nickname "Rietion" was took from the words; passion, reaction, and high tension. " Etotama Radio ~ Soruraru Kure Nya!  ~" and "Non Non Biyori Web Radio Non Non Dayori Repeat!  Nanon"; two radio programs in which she served as personality won Best Funny Radio (Rookie) and Best Comfort Radio (General) respectively at 2nd Aniraji Awards in 2016.  She made her solo debut as singer on June 1, 2016 with a double A-side single "Sweet Sensation/Baby, My First Kiss" under Nippon Columbia record label.  The song "Sweet Sensation" was used as opening theme for anime television series "Age 12: A Little Heart-Pounding".
Answer: Nancy Davis Reagan