Patrick Wilson, Conjuring 2
Patrick Wilson experienced a real scare while shooting Conjuring 2. In one scene, a heavy floor-to-ceiling curtain had started moving violently without wind in the room. The incident scared the crew so much that they asked a priest to come and bless the set.
Source: Endeared
When he was done shooting for the film, Wilson came home and started thinking his own house was haunted. Wilson shared in an interview with The Independent that people on two different occasions have heard kids laughing in his house in the middle of the night.