This is Jessica Biel's first leading role in a TV series.

Premiered during the TriBeCa Film Festival April 25, 2017

The fifth producing credit for Jessica Biel which includes two executive producer credits and three on being a producer. The Sinner, Jessica Biel is an executive producer.

Adult Phoebe says, "Are you not entertained?" This is a direct line from the film, Gladiator (2000) which was said by Maximus a character played by Russell Crowe.

As a med student Frankie would have known that CPR has to be performed with the patient on a hard surface. Hospitals frequently keep a "CPR board" in the rooms or with the "crash cart" for this purpose.

The song "Hugging & Kissing" by Big Black Delta features heavily throughout the first season. It's vital to the plot.