from The Unknown by Riley Sager
TV actor in the cast
Readers picture Brie Larson as Heather Benchley in The Unknown by Riley Sager. Other fancast picks include Kaitlyn Dever.
Picture someone else? to vote or add your own pick.
How readers say the book describes them.

Marin Keane
Sadie Sink

Ronan Peters
Oscar Isaac

Violet Wright
Jennifer Jason Leigh

Susie Hutchinson
Dove Cameron

Daisy Rue
Saoirse Ronan

Julianne Brown
Kathryn Hahn

Brad Brillstein
Dan Levy

Loretta Zener
Allison Janney