Christina Ricci (Misty) suggested that her character have a bird because she felt "weird people have birds."

Sophie Nélisse dyed her hair brown and wore brown contact lenses to match Melanie Lynskey.

Christina Ricci (Misty) was pregnant during the filming of season 1.

The pilot was filmed in November 2019. Due to the COVID-19 pandemic, filming for the rest of season 1 was delayed to 2021, when it was shot from May to October.

Tawny Cypress, who plays the adult version of Taissa, wears colored brown eye contacts on the show. Tawny's eyes are blue-green in real life.