Nicholas Hoult as J.D. Salinger

Kevin Spacey as Whit Burnett

Victor Garber as Sol Salinger

Hope Davis as Miriam

Zoey Deutch as Oona O'Neill

Lucy Boynton as Claire Douglas

Brian d'Arcy James as Giroux

Eric Bogosian as Harold Ross

Bernard White as Swami Nikhilananda

Jefferson Mays as William Maxwell

Will Rogers as Herb Kaufman

Sarah Paulson as Dorothy Olding

James Urbaniak as Gus Lobrano

Caitlin Mehner as Blythe Chaucer

Anna Bullard as Sylvia Welter

Keenan Jolliff as Clay Miller

Kristine Froseth as Shirley Blaney

Adam Busch as Nigel Bench

David Berman as Dr. Samuel Bater

Amy Rutberg as Betsy Hopper

Evan Hall as Rory Johnson

Jimmy Smagula as John Woodburn

Celeste Arias as Doris Salinger

Alyssa May Gold as Pearl

Francesca Root-Dodson as Carol Flourentine

Dana Drori as Stacey Pierce

Jenny Ashman as Bee Stein

Naian González Norvind as Queen's girl

Karen Walsh Rullman as Real Estate Agent

Nikolaos Argyros as Solider (uncredited)