 She later guest starred in a Nancy Drew episode, "The Mystery of the Fallen Angels".Whereas the characters were generally depicted as teenagers in the original books and most previous screen adaptations, such as the serialized Hardy Boys stories of the 1950s' "Mickey Mouse Club" series and the Bonita Granville Nancy Drew films of the late 1930s, the TV series "aged-up" Frank and Nancy, as Stevenson and Martin were both in their mid-20s; only Cassidy was still a teen at the time the series entered production.Janet Louise Johnson was also in her late teens when she replaced Martin as Nancy Drew.