James Franco as James Dean

Michael Moriarty as Winton Dean

Valentina Cervi as Pier Angeli

Enrico Colantoni as Elia Kazan

Edward Herrmann as Raymond Massey

Joanne Linville as Hedda Hopper

John Pleshette as Billy Rose

Barry Primus as Nicholas Ray

David Proval as Daniel Mann

Samuel Gould as Martin Landau

Amy Rydell as Christine White

Wendy Benson-Landes as Julie Harris

Karen Kondazian as Mrs. Pierangeli

David Parker as James Whitmore

Craig Barnett as George Stevens

Mark Rydell as Jack Warner

Lou Wagner as 'Eden' Make-up Person

Otto Felix as 'Eden' Camera Assistant

Christopher Lee as 'Eden' Assistant Director

Gretchen German as Kazan's Assistant

Bill Voigtlander as 'Eden' Camera Operator

Matthew W. Tenggren as Sound Man

Kyle Chambers as James Dean - 8-9 Yrs. Old

Lisa Robins as Mildred Dean

Peggy McCay as Emma Dean

William Stanford Davis as Train Conductor

Charles Dierkop as Groundsman

Steve Chambers as Postman

Lisa Blake Richards as Ethel Dean

Mushond Lee as Billy

Phil Parolisi as Cattle Call Stage Manager

Ellen Gerstein as Jane Deacy

Israel Horovitz as Louis Schurr

Fred Parnes as Actor's Studio Stage Manager

Andrew Prine as Rogers Brackett

James DiStefano as 'The Immortalist' Stage Manager

Harry Cohn as Hot Dog Vendor

Julie Janney as Geraldine Page

Antony Sandoval as Louis Jourdan

Mark Moses as Dick Clayton

Stan Coleman as Warner's Executive

Mark Kiely as Soldier in 'Silver Chalice'

Austen Rydell as 'Eden' Assistant Director's Son

Lyle Kessler as Lee Strasberg

Chad Restum as 'Rebel' Assistant Director

Elizabeth Barkette as Mrs. Stark

Frank Cassini as 'Giant' Assistant Director

Nick Klar as Winton's Neighbor

Allen Hall as 'Giant' Oil Derrick Rigger

Robert N. Gersicoff as 'Giant' Camera Operator

John C. Flinn IV as 'Giant' Assistant Camera

Guido Föhrweißer as Rolf Wütherich

Alexander Rydell as Boy on Bike

Holly Beavon as Marilyn Monroe (uncredited)

Lana Clarkson as Jayne Mansfield (uncredited)

Elizabeth Karsell Horne as Judy Garland (uncredited)

Michael Lefko as Rock Hudson (uncredited)

Karen Teliha as Bette Davis (uncredited)

Carla Barnett as Auntie Ortense (uncredited)

Eric Brenner as Julie Harris's Date (uncredited)

Greg Bronson as Reporter (uncredited)

Michael Dronge as Dolly Grip (uncredited)

Phil Hawn as Bartender (uncredited)

Matt Holly as Time Magazine Reporter (uncredited)

Val Lauren as Alex (uncredited)

Sean A. Mulvihill as Reporter (uncredited)

Ginger Pauley as Maria (uncredited)

Matthew Payne as Actors Studio Reporter (uncredited)

Renee Pezzotta as Smoking Woman (uncredited)

Brent Ponder as Autograph Collector (uncredited)

Brian Ruppert as N.Y Actor (uncredited)

Gary Sievers as Eden Production Crew Member (uncredited)

Clyde Tull as Train Conductor (uncredited)

Maggie Wagner as Mann's Assistant (uncredited)