Horror movies are known for their ability to create intense and frightening atmospheres, and sometimes, the fear experienced by the actors on set can be quite real and traumatizing.
Here are a few instances where actors were literally traumatized after filming certain scenes in horror movies.

Featuring:
0:36 Janet Leigh stopped taking showers
1:36 Kyle Richards' traumatic experience in "Halloween"
2:21 Kubrick traumatized Shelley Duvall
3:38 Isabelle Adjani suffered a mental breakdow
4:23 JoBeth Williams swimming with real skeletons
5:26 Ashley Banks is really afraid of Dracula
6:16 James McAvoy’s Pennywise nightmare
7:19 Dakota Johnson seeks therapy after Suspiria
8:18 Alex Wolff's traumatic experience in Hereditary

Recommended videos for you:
16 Times TV Hosts Tried To Humiliate Movie Stars:    • 16 Times TV Hosts Tried To Humiliate ...  
Tom Hanks Impersonating Everyone:    • Tom Hanks Impersonating Everyone (Fun...  
22 Times Tom Holland Was Too Precious For This World:    • 22 Times Tom Holland Was Too Precious...