Jabarkan Pemeran dari Underwater

Kristen Stewart sebagai Norah Price

Pada 22 Februari 2017, Kristen Stewart diumumkan akan membintangi Underwater, film yang disutradarai William Eubank dari naskah Brian Duffield. Terungkap pengambilan gambar utama akan dilakukan bulan berikutnya. On March 7, 2017, T.J. Miller and Jessica Henwick joined the cast. It was also confirmed that principal production would commence later that month in New Orleans.

On April 5, 2017, during principal production, Vincent Cassel and Mamoudou Athie joined the cast. The next day, John Gallagher Jr. joined the cast. In May 2017, following the end of principal production for the film, it was revealed that Gunner Wright rounded out the cast of the film.