By the mid 1970s, Hershey concluded, "I've been so tied up with David that people have forgotten that I am me. I spend 50 percent of my time working with David." She had, in 1974, guest-starred in a two-part episode of Carradine's television series "Kung Fu". She played, under the direction of Carradine, a love interest to his character, Kwai Chang Caine, during his time at the Shaolin temple. She also appeared in two of Carradine's independent directorial projects, "You and Me" (1975) and "Americana" (1983), both of which had been filmed in 1973. Her father, Arnold Herzstein, also appeared in "Americana".