Bonnie Aarons plays the role of Valak , the Demon Nun , in Annabelle : Creation 's post-credits scene .
In a post-credits scene , set in Romania in 1952 , Valak , the Demon Nun ( Bonnie Aarons ) , walks towards the camera in the candle-lit halls of the Cârța Monastery , as each candle slowly goes out , teasing the events of The Nun.