Duffield will also produce.
Casting heated up in recent weeks with several young actors testing for the role.
Duffield and execs tested the final group last week.
(L-R) Austin Abrams and Brian DuffieldRoss Goldstein/Getty
Richard Abate and Will Rowbotham of 3 Arts Entertainment will exec produce with J.R. Young overseeing for the studio.
Whalefallhas generated immense buzz within the publishing world, receiving acclaim from readers and literary enthusiasts alike.
As for Abrams, last year he starred opposite George Clooney and Brad Pitt in Jon WattsWolfs.
That film premiered at the 2023 Tribeca Film Festival and was released in theaters in October 2024.
The Warner Bros film is set to release on January 16, 2026.
Abrams won fans and critical acclaim for his role as the beloved Ethan on HBOsEuphoria.
He is repped by WME, Amplified and attorney Derek Kroeger.
Imagine Entertainments most recent productionAfter the Hunt, directed by Luca Guadagnino, will open in theaters October 10.