Password player and actress Betty White. Ludden suffered stomach cancer and had a stroke, causing his death on June 9, 1981. Ludden was buried beside his father in the Ellsworth family plot in Graceland Cemetery in his hometown of Mineral Point, Wisconsin.
- College Bowl
- Password Plus
- Win with the Stars
- Liar's Club
- Talking Pictures (1968 unsold pilot)
- The Joker's Wild (two pilots, 1968 and 1969)