Dementia is a 1955 American black-and-white experimental horror film produced, written, and directed by John Parker, and starring Adrienne Barrett and Bruno Ve Sota. The film, which contains no dialogue, follows a young woman's nightmarish experiences during a single night in Los Angeles's skid row. Stylistically, it incorporates elements of horror, film noir, and expressionist film.

Edward Leo Peter McMahon Jr. was an American announcer, game show host, comedian, actor, singer, and combat aviator. McMahon and Johnny Carson began their association in their first TV series, the ABC game show Who Do You Trust?, running from 1957 to 1962. McMahon then made his famous thirty-year mark as Carson's sidekick, announcer and second banana on NBC's The Tonight Show Starring Johnny Carson from 1962 to 1992.