High Quality Content by WIKIPEDIA articles! Joan Tompkins, legally known as Joan Swenson (July 9, 1915–January 29, 2005) was an American actress of television, film, radio, and stage, who co-founded with her husband, Karl Swenson, an acting company in Beverly Hills, California. In the 1962-1963 television season, Tompkins played legal secretary Trudy Wagner in twenty-eight episodes of Edmond O`Brien`s NBC legal drama Sam Benedict, co-starring Richard Rust. From 1967-1970, she guest starred nine times as Lorraine Miller in Fred MacMurray`s CBS situation comedy, My Three Sons, with her last appearance in the episode "St. Louis Blues" on December 19, 1970.