Howard Hughes

Leonardo DiCaprio

Katharine Hepburn

Cate Blanchett

Ava Gardner

Kate Beckinsale

Noah Dietrich

John C. Reilly

Juan Trippe

Alec Baldwin

Sen. Ralph Owen Brewster

Alan Alda

Jack Frye

Danny Huston

Professor Fitz

Ian Holm

Jean Harlow

Gwen Stefani

Errol Flynn

Jude Law

Johnny Meyer

Adam Scott

Glenn Odekirk

Matt Ross

Tabloid editor

Willem Dafoe

Faith Domergue

Kelli Garner

Katharine Martha Houghton Hepburn

Frances Conroy

Robert Gross

Brent Spiner

Louis B. Mayer

Stanley DeSantis

Joseph Breen

Edward Herrmann

Dr. Thomas Norval Hepburn

Kenneth Welsh

Ludlow Ogden Smith

J.C. MacKenzie

Ludlow

J. C. MacKenzie

Thelma

Josie Maran

Howard Hughes - 9 Years Old

Jacob Davich

Howard Hughes' Mother

Amy Sloan

Jorge

Vincent Laresca

HELL'S ANGELS Stunt Coordinator

Sam Hennings

HELL'S ANGELS Director of Photography

Joseph Chrest

Engineer

Chris Ufland

Test pilot

Justin Shilton

Marine

Keith Campbell

Cocoanut Grove Vocalist #1

Rufus Wainwright

Spencer Tracy

Kevin O'Rourke

Crony of Louis B. Mayer

Harry Standjofski

Secretary

Nellie Sciutto

Cocoanut Grove Band Member

Vince Giordano

Cocoanut Grove Patron

Jason Cavalier

Radio Announcer

Arthur Holden

Roscoe Turner

Raymond Ducasse

Cocoanut Grove Vocalist #2

Loudon Wainwright III

Aide to Howard

Joseph Reidy

Cocoanut Grove Vocalist #3

Martha Wainwright

Pan Am Executive #1

Al Dubois

Maitre d'

Stéphane Demers

Waiter

Yves Jacques

Pan Am Executive #2

John Koensgen

Man on Crutches

Alan Toy

Timer

Sebastian Tillinger

Aide to Howard

Joseph P. Reidy

Little Girl

Francesca Scorsese

Little Girl

Charlotte Scott

Uncle Willy

James Bradford

Another Guest #1

Joe Cobden

Another Guest #2

Linda E. Smith

Chairman MPA

Alan Fawcett

Hughes' Aide at Censor Hearing

Jordan St. James

Emcee

David Purdham

Noah's Wife

Lisa Bronwyn Moore

Jack Frye's Wife, Helen

Emma Campbell

Hughes' Staff Person

Matt Holland

Nick the Custodian

Dennis St John

Doctor

Al Vandercruys

FBI Agent

James Rae

Brewster's Maid

Kathleen McAuliffe

Another Senator

Terry Haig

James McNamara

James McNamara

Caretaker

Vladimir Kuznetsov

Caretaker

Mark Akeson

Caretaker

Jason Pollard

Vivien Leigh

Heather Petrone

Esquire Starlet

Danielle Franke

Starlet

Meghan Elizabeth

Starlet

Elizabeth DeCicco

Coat Check Girl

Elisa Dyann

Editor

Isabelle Champeau

Bi-Plane Mechanic

Al Coronel

Military Officer

Gerardo Lo Dico

Howard Hughes' Film Editor

Anne V. Coates