Nicholas Hammond and John Karlen (The Lady on Thursday at Ten); Melanie Griffith (The House on Possessed Hill); Kim Cattrall and Linda Dano (Voodoo Doll); Valerie Bertinelli, Stepfanie Kramer and Kim Lankford (Campus Terror); and Ana Alicia (Life on the road). Lloyd Bochner and Dorothy Malone (The House on Possessed Hill); Diana Muldaur (Sole Survivor); Ray Milland and Howard Duff (Voodoo Doll); Vic Damone, Fabian and Troy Donahue (Mystery on the Avalanche Express); Jack Jones (Death Surf); Pernell Roberts and Joseph Cotten (Arson and Old Lace); Kevin Tighe (Last Kiss of Summer) Dana Andrews and Patrick Macnee (Assault on the Tower); John Colicos (Seek for Atlantis); June Lockhart and Robert Loggia (Dangerous Waters). 12, "The Mystery of the Ghostwriter's Cruise", is noteworthy because it incorporates a sequence during which a tsunami seems to strategy a cruise ship, a deliberate homage to the 1972 catastrophe movie, The Poseidon Adventure, during which Martin had additionally starred. She later guest starred in a Nancy Drew episode, "The Mystery of the Fallen Angels". Sidaris stated that casting Nancy Drew was harder, as "everyone had a hard and fast image of their heads" of what she was like. Adams wanted Brotman and Sidaris to maintain the wholesome, conservative values of the characters; when Brotman and Sideris agreed, she authorized of the sequence, however with full script approval.

The episodes are then storyboarded by artists, who produce 500 to 800 drawings over three weeks while consulting the writer's script. Stevenson, Cassidy and Martin are credited as Starring. Martin, Stevenson, and Cassidy had been all credited in all episodes, despite the program alternating between the characters. Whereas the characters have been usually depicted as teenagers in the original books and most earlier display screen adaptations, such as the serialized Hardy Boys tales of the 1950s' Mickey Mouse Club sequence and the Bonita Granville Nancy Drew films of the late 1930s, the Tv series "aged-up" Frank and Nancy, as Stevenson and Martin had been both of their mid-20s; solely Cassidy was nonetheless a teen on the time the sequence entered production. Adams had inherited the Syndicate from her father, Edward Stratemeyer, after his death in 1930. In the late 1930s, Warner Bros. At first, the 83-year-outdated Adams was skeptical. Adams about buying the film rights to the Drew sequence. This time, they lower the Nancy Drew character, and the sequence, now titled The Hardy Boys, targeted solely on the Hardys. The Hardy Boys and Nancy Drew have been each successful e-book publishing franchises owned by the Stratemeyer Syndicate, a publishing group which owned many profitable kids's e book lines.

Actress Jamie Lee Curtis auditioned for the function of Nancy Drew. Rick Springfield additionally portrayed Ned Nickerson in a single season two episode, but Springfield's position was unrelated to O'Hanlon's. Joe Hardy was engaged in the first episode, however his fiancée was killed in a hit-and-run, investigated by the FBI. For the primary season, the opening credit featured a maze underneath the collection title. For the third season, the collection' theme tune was remixed, and given extra of an upbeat disco sound. This backlot avenue was later used escort in Pushkar the Tom Hanks comedy film The 'Burbs; the music video for Smash Mouth's hit music "All Star"; and as Wisteria Lane in the ABC drama Desperate Housewives, during which the home of the Hardys also served the home of foremost character Susan Mayer. Universal gave the assignment to Glen A. Larson, who had produced the police drama Get Christie Love! At the end of the haunting theme music, the voice-over announcer (William Conrad) would state who was featured in the episode and the episode title.

For the second season, the title sequence was altered; the maze was changed with clips from the series and a collage of book covers from the ebook sequence. Following the ending of the second season, the Nancy Drew character was dropped, and the series was re-titled The Hardy Boys. Following the departure of Pamela Sue Martin and the next blended reaction with alternative Janet Louise Johnson, producers once again rebooted the series. Janet Louise Johnson was also in her late teens when she changed Martin as Nancy Drew. The sequence replaced the short-lived Cos, and aired earlier than Top 10 hits The Six Million Dollar Man and The ABC Sunday Night Movie. The Hardy Boys had beforehand been adapted for The Mickey Mouse Club in the late 1950s, and a Saturday morning cartoon collection in the late 1960s, both of which disappointed Adams once more. Larson later said the network had "cancellation remorse", while Stevenson said that, years later, an ABC govt on the time mentioned his greatest mistake was cancelling The Hardy Boys.