Mary Frann (born Mary Frances Luecke, February 27, 1943 – September 23, 1998) was an American stage, film and television actress. Frann is best known for her role as Bob Newhart's wife, Joanna Loudon, on the CBS sitcom Newhart, which aired from 1982 to 1990.
Born in St. Louis, Missouri, Frann was a child model and appeared in commercials for a local television station while she attended Nerinx Hall High School. At the age of 18, she was voted Missouri's "Junior Miss". She went on to win the 1961 national title of America's Junior Miss and earned a college scholarship to study drama at Northwestern University. As America's Junior Miss, she starred in a Jam Handy educational film (Prom: It's a Pleasure) extolling the etiquette and fun of the high school prom. While attending Northwestern, Frann worked as a weather reporter for the NBC station in St. Louis. After a year, she dropped out of Northwestern and moved to Chicago where she co-hosted a morning show on an ABC affiliate. While working as a host, Frann worked in local theatre productions and began working in television and films. In 1964, Frann made her television debut in an episode of the Kraft Suspense Theatre. That same year, she appeared in the television movie Nightmare in Chicago, starring Carroll O'Connor. In 1966, Frann made her film debut in the low budget musical drama Nashville Rebel, starring Waylon Jennings.