The voice of the judge is Carla Gugino, who also starred in director Mike Flanagan's previous work, 'The Haunting of Hill House' (as Olivia Crain), 'The Haunting of Bly Manor' (as The Storyteller), and Gerald's Game (as Jessie Burlingame)
Mike Flanagan has called this a passion project, stemming out of his own Roman Catholic upbringing and his struggles with sobriety.
Zach Gilford missed the birth of his son while filming this series as travel was not permitted between the USA and Canada without severe quarantine restrictions. He only met his offspring for the first time when his boy was six weeks old.
Mike Flanagan originally conceived this as a novel and then a feature film, before finally settling on the idea of doing a mini-series.
Island living is something that Mike Flanagan can easily relate to as he grew up on Governor's Island in New York Harbor (his father served two stints in the US Coast Guard).