In 1850s, Fiona Nolan, a devout Irish woman who is incapable of conceiving a child, tries to build a family by adopting four orphans believing in higher purpose of her acts.
[3][5] Alongside Sutter, Emmy Grinwis, Stephen Surjik, and Otto Bathurst were appointed as executive producers during an announcement on March 27, 2023.
[7][9][14] Lucas Till, Nick Robinson, Lamar Johnson, Diana Silvers, Aisling Franciosi, and Natalia del Riego were revealed to have joined the main cast on March 1, 2024.
[16] More cast were announced about two weeks later with Patton Oswalt, Sarah Grace White, Michael Ornstein, Elle-Máijá Tailfeathers, Brían F. O’Byrne, Haig Sutherland, Jack Doolan, Jonathan Koensgen, Katelyn Wells, and Marc Menchaca all joining in recurring capacities.
[17] Additional casting were announced on April 4, 2024 with Ryan Hurst, Michael Greyeyes, Michiel Huisman, and Toby Hemingway joining the series in recurring roles.