Kesner-Graver was best known for playing Fonzie's girlfriend, Lorraine, on Happy Days. She was credited as Jillian Kesner on Happy Days, as well as her other television and movie roles. She appeared in a large number of "B-rated" films throughout the 1970s, 1980s and 1990s. Her credits included Raw Force, Starhops and Jaded. She developed a large following among fans of B-level action films.