Swamp Thing #84 was published by DC Comics on March 1, 1989, as part of a series that began in 1986. Marvin Kilroy and Rick Veitch write, and art comes from Alfredo Alcala, John Totleben and Tatjana Wood. This 36-page issue features John Constantine, Adam Strange, Abby Holland, Dream of the Endless (Morpheus) and Matthew Cable, among 7 characters cataloged on VerseDB.