Who plays the Slender Man in 'Slender Man' (2018) - Javier Botet
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'Slender Man' Movie 2018: Meet The Cast

2. Who plays the Slender Man in 'Slender Man' (2018) - Javier Botet
In the title role of Slender Man is Spanish actor Javier Botet. Slender Man is a mythological man with tall legs and arms who haunts and kills teens. How tall is the Slender Man actor in real life? Javier stands at an eye watering 6 foot 6. Javier has been in other films like 2017's 'IT', 'The Conjuring 2' and 2017's 'The Mummy' [Photo via Getty/Carlos Alvarez]