🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsSvenskaРусский日本語EntityQ3107459· pop 11· linked from 46 articlesDagger of the MindAlso known as DMd, Star Trek : Dagger of the Mind9th episode of the first season of Star Trek: The Original SeriesWikidata factsShow 1 more factP8979January 3Sources (13)wikidata.orgallmovie.commemory-alpha.fandom.comrottentomatoes.comtv.apple.commemory-alpha.fandom.comAvailable in 11 languagesEspañolFrançaisDeutschРусскийBahasa IndonesiaCatalanCzechEsperantoRomanianSerbian (Latin)via Wikidata sitelinks · CC0ConnectionsWilliam ShakespearePersonInternational Standard Book NumberEntityCategories1966 American television episodesComics articles needing issue citationsFiction about memory erasure and alterationStar Trek: The Original Series season 1 episodesTelevision episode articles with short description for single episodesTelevision episodes directed by Vincent McEveetyTelevision episodes written by Shimon Wincelberg