page_title: Bonanza
section_title: Pernell Roberts – Adam Cartwright
hierarchical_section_title: Bonanza / Cast / Pernell Roberts – Adam Cartwright
caption_attribution_description: Cropped screenshot of Pernell Roberts from the television series Bonanza. Episode: "Bitter Water" (1960).
context_page_description: Bonanza is an American Western television series that ran on NBC from September 12, 1959, to January 16, 1973. Lasting 14 seasons and 431 episodes, Bonanza is NBC's longest-running western, and ranks overall as the second-longest-running western series on U.S. network television, and within the top 10 longest-running, live-action American series. The show continues to air in syndication. The show is set in the 1860s and it centers on the wealthy Cartwright family who live in the vicinity of Virginia City, Nevada, bordering Lake Tahoe. The series initially starred Lorne Greene, Pernell Roberts, Dan Blocker and Michael Landon and later featured Guy Williams, David Canary, Mitch Vogel and Tim Matheson. The show is known for presenting pressing moral dilemmas.
  The title "Bonanza" is a term used by miners in regard to a large vein or deposit of silver ore, from Spanish bonanza and commonly refers to the 1859 revelation of the Comstock Lode of rich silver ore mines under the town of Virginia City, not far from the fictional Ponderosa Ranch that the Cartwright family operated. The show's theme song, also titled "Bonanza", became a hit song.
context_section_description: Pernell Roberts played eldest son Adam, an architectural engineer with a university education. Adam built the impressive ranch house. Roberts disdained the assembly-line mindset of serial television (a rigid 34 episode season), and fought with series writers regarding Adam's lack of independence, noting that his 30-plus year old character was dependent on his "Pa's" approval. Despite the show's success, Roberts departed the series after the 1964–65 season (202 episodes) and returned to stage productions.
  Attempts to replace Adam with Little Joe's maternal half-brother Clay (Barry Coe) and Cartwright cousin Will (Guy "Zorro" Williams), were unsuccessful. Creator David Dortort introduced a storyline that would keep the character of Adam in the mix, but with a lighter schedule. During season five Adam falls for a widow with a young daughter, while making Will Cartwright a central figure. Roberts decided to stay an additional season, so the scripts were quickly revised by having Adam's fiancée and her daughter depart the series prematurely with Guy Williams' Will, with whom she'd fallen in love. It was Landon, not Roberts, who objected to the infusion of any new Cartwrights. After Roberts did leave the following year, it was eventually mentioned that Adam had gone "to sea", and in the later movies he had emigrated to Australia and had a son Adam 'A.C.' Cartwright, Jr. In mid 1972, the series producers considered inviting Roberts back in the wake of Dan Blocker's death: "One suggestion was to return Pernell Roberts, who had played another Cartwright son when Bonanza first premiered on NBC fourteen years ago. We only considered that briefly, [producer Richard Collins says] Some people felt it was a logical step—the oldest son returning at a time of family need—but most of us didn't think it would work.'"
caption: Pernell Roberts as Adam Cartwright
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