Willem Dafoe Roland Sweet
Leonardo DiCaprio Howard Hughes, Executive Producer
Kate Beckinsale Ava Gardner
Jude Law Errol Flynn
Cate Blanchett Katharine Hepburn
Martin Scorsese Director, Executive Producer
Alan Alda Senator Ralph Owen Brewster
Alec Baldwin Juan Trippe
John C. Reilly Noah Dietrich
Danny Huston Jack Frye
Adam Scott Johnny Meyer
Ian Holm Professor Fitz
Frances Conroy Mrs. Hepburn
Michael Mann Producer
Edward Herrmann Joseph Breen
Brent Spiner Robert Gross
Harvey Weinstein Executive Producer
Kelli Garner Faith Domergue
Bob Weinstein Executive Producer
Jacob Davich Howard Hughes (9 yrs old)
Arthur Holden Radio Announcer
Joe Chrest HELL'S ANGELS Director of Photography
John Logan Writer
Dante Ferretti Production Design
Gwen Stefani Jean Harlow
Kenneth Welsh Dr. Hepburn
Matt Ross Glenn Odekirk
Vincent Laresca Jorge
Kevin O'Rourke Spencer Tracy
Howard Shore Original Music Composer
J.C. MacKenzie Ludlow
Joe Cobden Another Guest #1
Robert Richardson Director of Photography
Dan Perri Title Designer
Francesca Scorsese Little Girl
Josie Maran Cigarette Girl
Sam Hennings HELL'S ANGELS Stunt Coordinator
Robert Stromberg Visual Effects Supervisor
Al Coronel Bi-Plane Mechanic (uncredited)
Thelma Schoonmaker Editor
Joseph P. Reidy Co-Producer, Aide to Howard, First Assistant Director
Amy Sloan Howard Hughes' Mother
Graham King Producer
James Bradford Uncle Willy
Keith Campbell Marine, Stunts
Emma Campbell Jack Frye's Wife, Helen
Ellen Lewis Casting
Stéphane Demers Maitre d'
Stanley DeSantis Louis B. Mayer
Siân Grigg Makeup Artist
Morag Ross Makeup Department Head
Loudon Wainwright III Cocoanut Grove Vocalist #2
Doug Coleman Stunt Coordinator
George A. Lara Foley Mixer
Denny Caira Transportation Coordinator
Alan Fawcett Chairman MPA
Dana Gonzales Additional Camera
Randall Poster Music Supervisor
Tim Monich Dialect Coach
Robert Legato Visual Effects Supervisor, Second Unit Director
Michael Miller ADR Mixer
Yves Jacques Waiter
Lucie Robitaille Casting
Jason Cavalier Cocoanut Grove Patron
Eliza Coleman Stunts
Steven Visscher Foley Editor
Linda E. Smith Another Guest #2
Toby Bronson Set Costumer
Ron Barr Digital Intermediate Editor
Chris Lyons Special Effects Makeup Artist
Antonella Elia (uncredited)
Harry Standjofski Crony of Louis B. Mayer