Dark Shadows is a Gothic television soap opera that originally aired weekdays on the ABC television network, from June 27, 1966 to April 2, 1971. The show was created by Dan Curtis, who tells of a dream he had in which a girl takes a long train ride to visit a large mansion. The story "bible," which was written by Art Wallace, does not mention any supernatural elements. It was considered daring (and unprecedented in daytime television) when ghosts were introduced about six months after it began. The series became hugely popular when, a year into its run, vampire Barnabas Collins, played by Jonathan Frid, appeared. In addition to vampires, Dark Shadows featured werewolves, ghosts, zombies, man-made monsters, witches, warlocks, time travel, both into the past and into the future, and a parallel universe. A small company of actors each played many roles and, as actors came and went, some characters were played by several actors. Major writers in addition to Art Wallace included Sam Hall, Gordon Russell, and Violet Welles.

Dark Shadows has the distinction of being the only long-running soap to have every episode released for home video (including a reconstruction episode #1219, the videotape for which is lost), first on VHS and currently in progress on DVD. (Episodes were numbered from #1 to #1245, but some episodes were pre-empted due to holidays, news, etc. so the number of episodes actually broadcast is 1225.)

Dark Shadows was distinguished by its vividly melodramatic performances, atmospheric interiors, memorable story lines and an unusually adventurous music score. Now regarded as somewhat of a camp classic, it continues to enjoy intense cult status among its followers. Director Tim Burton and pop icon Madonna have both gone on record as fans of the series. As a child Johnny Depp was so obsessed with Barnabas Collins that he wanted to be him.