Russell Crowe

John Nash

Jennifer Connelly

Alicia Nash

Ed Harris

William Parcher

Paul Bettany

Charles Herman

Christopher Plummer

Dr. Rosen

Josh Lucas

Martin Hansen

Adam Goldberg

Richard Sol

Anthony Rapp

Bender

Judd Hirsch

Helinger

Jason Gray-Stanford

Ainsley Neilson

Austin Pendleton

Thomas King

Vivien Cardone

Marcee

Jillie Simon

Bar Co-Ed

Victor Steinbach

Prof. Horner

Tanya Clarke

Becky

Thomas F. Walsh

Captain

Jesse Doran

General

Kent Cassella

Analyst

Patrick Blindauer

MIT Student

John Blaylock

Photographer

Roy Thinnes

Governor

Anthony Easton

Young Man

Cheryl Howard

Harvard Administrator

Josh Pais

Princeton Professor

David B. Allen

John Nash Teenager

Michael Esper

John Nash Young Man

Erik Van Wyck

Princeton Student

Rance Howard

White-Haired Patient

Jane Jenkins

Code-Red Nurse

Darius Stone

Adjunct

Valentina Cardinalli

Joyce

Teagle F. Bougere

Young Professor

Amy Walz

Blond in Bar

Tracey Toomey

Brunette

Jennifer Weedon

Brunette

Yvonne Thomas

Brunette

Holly Pitrago

Brunette

Isadore Rosenfeld

Pen Ceremony Professor

Tom McNutt

Pen Ceremony Professor

Alex Toma

Toby

Bryce Dallas Howard

Student at Harvard University (uncredited)

Ryan O'Connor

Princeton Student (uncredited)

Eva Burkley

Girl at Bar