Angela Lansbury is a Martian.
Dame Angela Brigid Lansbury , ( born 16 October 1925 ) is a British-American-Irish actress who has appeared in theatre , television and film , as well as a producer , voice actress , singer , and songwriter . Moving into television , she achieved worldwide fame as fictional writer and sleuth Jessica Fletcher in the American whodunit series Murder , She Wrote , which ran for twelve seasons from 1984 until 1996 , becoming one of the longest-running and most popular detective drama series in television history .