Mike Flanagan Creator, Executive Producer Michiel Huisman Steven Crain Actor Carla Gugino Olivia Actor Timothy Hutton Hugh Crain Actor Elizabeth Reaser Shirley Crain Actor Oliver Jackson-Cohen Luke Crain Actor Henry Thomas Young Hugh Crain Actor Kate Siegel Theodora Crain Actor Victoria Pedretti Nell Crain Actor Lulu Wilson Young Shirley Actor Mckenna Grace Young Theo Actor Paxton Singleton Young Steven Actor Violet McGraw Young Nell Actor Julian Hilliard Young Luke Actor Trevor Macy Executive Producer Meredith Averill Executive Producer Justin Falvey Executive Producer Darryl Frank Executive Producer