Biography: From Wikipedia, the free encyclopedia. Evalyn Knapp (June 17, 1906 – June 12, 1981) was an American film actress of the late 1920s, 1930s, and into the 1940s. She was a leading B-movie serial actress in the 1930s. Born as Evelyn Pauline Knapp in Kansas City, Missouri in 1906, Knapp...