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 line). 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 as a result of it accommodates a sequence during which a tsunami seems to method a cruise ship, a deliberate homage to the 1972 catastrophe film, The Poseidon Adventure, in which Martin had also starred. She later guest starred in a Nancy Drew episode, "The Mystery of the Fallen Angels". Sidaris acknowledged that casting Nancy Drew was tougher, as "everyone had a fixed image of their heads" of what she was like. Adams wished Brotman and Sidaris to maintain the wholesome, conservative values of the characters; when Brotman and Sideris agreed, she authorised of the series, but with full script approval.

The episodes are then storyboarded by artists, who produce 500 to 800 drawings over three weeks whereas consulting the writer's script. Stevenson, Cassidy and Martin are credited as Starring. Martin, Stevenson, and Cassidy were all credited escort service in Shimla all episodes, regardless of the program alternating between the characters. Whereas the characters have been generally depicted as teenagers in the original books and most earlier display adaptations, such because the serialized Hardy Boys stories of the 1950s' Mickey Mouse Club sequence and the Bonita Granville Nancy Drew movies of the late nineteen thirties, the Tv collection "aged-up" Frank and Nancy, as Stevenson and Martin were each in their mid-20s; only Cassidy was nonetheless a teen on the time the series entered manufacturing. Adams had inherited the Syndicate from her father, Edward Stratemeyer, after his demise in 1930. In the late thirties, Warner Bros. At first, the 83-year-old Adams was skeptical. Adams about shopping for the film rights to the Drew series. This time, they cut the Nancy Drew character, and the sequence, now titled The Hardy Boys, focused solely on the Hardys. The Hardy Boys and Nancy Drew were each profitable e book publishing franchises owned by the Stratemeyer Syndicate, a publishing group which owned many successful kids's e-book strains.

Actress Jamie Lee Curtis auditioned for the position of Nancy Drew. Rick Springfield additionally portrayed Ned Nickerson in a single season two episode, however Springfield's function was unrelated to O'Hanlon's. Joe Hardy was engaged in the primary episode, however his fiancée was killed in a success-and-run, investigated by the FBI. For the first 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 street was later used within the Tom Hanks comedy movie The 'Burbs; the music video for Smash Mouth's hit track "All Star"; and as Wisteria Lane in the ABC drama Desperate Housewives, in which the home of the Hardys also served the house of major character Susan Mayer. Universal gave the task to Glen A. Larson, who had produced the police drama Get Christie Love! At the tip of the haunting theme music, the voice-over announcer (William Conrad) would state who was featured within the episode and the episode title.

For the second season, the title sequence was altered; the maze was replaced with clips from the series and a collage of e book covers from the e book collection. Following the ending of the second season, the Nancy Drew character was dropped, and the collection was re-titled The Hardy Boys. Following the departure of Pamela Sue Martin and the subsequent combined response with replacement Janet Louise Johnson, producers once again rebooted the sequence. Janet Louise Johnson was additionally in her late teenagers when she changed Martin as Nancy Drew. The sequence changed the quick-lived Cos, and aired earlier than Top 10 hits The Six Million Dollar Man and The ABC Sunday Night Movie. The Hardy Boys had previously been tailored for The Mickey Mouse Club within the late 1950s, and a Saturday morning cartoon sequence in the late 1960s, both of which disenchanted Adams once more. Larson later stated the network had "cancellation remorse", while Stevenson mentioned that, years later, an ABC executive at the time mentioned his biggest mistake was cancelling The Hardy Boys.