Home›1977 British television episodes›The Invisible Enemy🌐EnglishEnglishEspañolFrançaisItalianoTürkçeРусский中文EntityQ3475490· pop 6· linked from 107 articlesThe Invisible EnemyDoctor Who serialAvailable in 6 languagesEspañolFrançaisРусскийTürkçeVolapükvia Wikidata sitelinks · CC0ConnectionsBob BakerEntityDoctor Who, season 15EntityCategories1977 British television episodesDoctor Who serials novelised by Terrance DicksEpisode list using the default LineColorFiction about size changeFiction set in the 5th millenniumFiction set on Titan (moon)Fourth Doctor serialsTelevision episodes about cloningTelevision episodes set in hospitalsTelevision episodes written by Bob Baker (scriptwriter)