Best known as Theodora Crain in The Haunting of Hill House, Erin Greene in Midnight Mass, and Maddie Young in Hush.
Films
- HypnoticJennifer Campbell2021
- The WretchedMallory2019
- Gerald’s GameSally2017
- Before I WakeJenny2016
- Ouija: Origin of EvilJenny Browning2016
- HushMaddie Young2016
TV shows
- The Fall of the House of UsherCamille L’Espanaye2023
- Midnight MassErin Greene2021
- The Haunting of Bly ManorViola Lloyd / The Lady of the Lake2020
- The Haunting of Hill HouseTheodora ‘Theo’ Crain2018
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About Kate Siegel
Kate Siegel is an American actress and screenwriter, most recognised for her collaborations with director Mike Flanagan. She has starred in several acclaimed Netflix horror series and films, often portraying complex, resilient characters. Her breakthrough role came in the 2016 horror film Hush, which she also co-wrote.
FAQs
What is Kate Siegel best known for?
Kate Siegel is best known for her roles in Mike Flanagan’s Netflix horror series, particularly The Haunting of Hill House as Theodora Crain, and Midnight Mass as Erin Greene. She also starred in and co-wrote the film Hush.
Has Kate Siegel worked on any projects outside of horror?
While she is predominantly known for horror, Siegel has also appeared in dramas like The Wretched and the thriller Hypnotic. However, her most prominent work remains within the horror genre.
Is Kate Siegel married to Mike Flanagan?
Yes, Kate Siegel married director Mike Flanagan in 2016. They have two children and have collaborated on numerous projects.
What was Kate Siegel’s first major acting role?
Her first major role was in the 2013 film ‘The Onion’? Actually, her breakthrough came with the 2016 film Hush, which she also co-wrote. Prior to that, she had guest roles on TV shows like The Wedding Band and Castle.
Does Kate Siegel write as well as act?
Yes, she co-wrote the film Hush with Mike Flanagan and contributed to the screenplay for the series The Haunting of Hill House and others.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026