Vicki Frederick (born January 2, 1949) is an American actress and dancer who has appeared in a number of musicals on Broadway plays, in films, and on popular TV shows such as Mork and Mindy and Happy Days in 1979, and Murder She Wrote in 1990. Frederick was a protégé of Bob Fosse, dancing in the ensemble and lead roles in his Broadway productions of Pippin (1972), and Dancin' (1978). She starred in Robert Aldrich's final film ...All the Marbles (1981), and in the 1984 rock musical film Body Ro...