A few years prior to getting to know Mike Flanagan, Kate Siegel made appearances on numerous shows such as "Numb3rs" and "Castle," per IMDb. While speaking to Collider in September 2021, the actress revealed she made Flanagan's acquaintance while trying out to be a part of "a movie that was not made." She confided she "didn't book that one," but the filmmaker ended up reaching out to her to play Marisol Chavez in his 2013 movie "Oculus." "He called and said the person who's playing this part in 'Oculus,' she broke her leg and she can't do this anymore and it's a small part and I really want to work with you," explained Siegel.
In an April 2016 joint Collider interview, Flanagan and his wife discussed how they came up with the script of the 2016 movie "Hush." Flanagan shared that Siegel played "a young deaf woman who's a writer." He noted that the woman, Maddie Young, "lives alone in the woods and one night a man in a mask appears at her window," which leads to a violent encounter. He explained that they brainstormed ideas for the film while living in a house in Glendale, California.
"We would like sit in the house and Kate would sit inside and I would go outside and I would try to find different ways to break in. And it was really, really fun," explained the director.
