German actress Dayna Shuffle had previously worked with British actor Nathan Head on Exorcist Chronicles (2013) and Dead Walkers: Rise of the 4th Reich (2013), her scenes for Apparition of Evil (2014) were shot while she, Nathan and Paul Sutton were together for a Dead Walkers: Rise of the 4th Reich (2013) publicity photo shoot with Awesome Magazine.
In 2015 an unreleased prequel called The Fear Project was made by Alex Deck, Brel Offkel and Owen Mulligan with Nathan Head, Cain Harrip, Sandy and Dion Cavallaro reprising their roles from Apparition of Evil (2014).
Features actual recordings of the Reverend Jim Jones of The Peoples Temple cult, who was responsible for the largest mass suicide in human history (Official reports vary between 789 to 900 dead).
Contains audio from an actual demonic possession of Anneliese Michel, recorded by priests Ernst Alt and Arnold Renz, whose story inspired the feature films The Exorcism of Emily Rose, Requiem, and the Asylum film Anneliese: The Exorcist Tapes.
In the segment "The Haunted House Of Karl Hendry", when Karl is in the local studies centre, the password he typed into the keyboard while printing off the documents and news articles spells out C-L-I-V-E-B-A-R-K-E-R. Lead actor Nathan Head is a long-time fan of the Hellraiser franchise, which was started by horror author Clive Barker.