 Darleen Carr, who guest starred in the episode "Search for Atlantis", is the sister of Charmian Carr, who played Liesl von Trapp in the Robert Wise film adaptation of "The Sound of Music".Producer Glen A. Larson also produced the science fiction series "Battlestar Galactica", which aired in 1978-'79 and 1980.A number of actors who appeared in "The Hardy Boys/Nancy Drew Mysteries" were also either cast members or guest stars of that series, including Lorne Greene, Maren Jensen, Anne Lockhart, Rick Springfield, Ana Alicia, Patrick Macnee and John Colicos.