Michelle Williams (Marilyn Monroe)
Eddie Redmayne (Colin Clark)
Kenneth Branagh (Sir Laurence Olivier)
Dougray Scott (Arthur Miller)
Julia Ormond (Vivien Leigh)
Zoë Wanamaker (Paula Strasberg)
Philip Jackson (Roger Smith)
Geraldine Somerville (Lady Jane Clark)
Derek Jacobi (Sir Owen Morshead)
Simon Russell Beale (Cotes-Preedy)
Pip Torrens (Sir Kenneth Clark)
Michael Kitchen (Hugh Perceval)
Miranda Raison (Vanessa)
Karl Moffatt (Jack Cardiff)
Robert Portal (David Orton)
Jim Carter (Barry)
Victor McGuire (Andy)
Richard Attlee (Reporter #1)
Michael Hobbs (Reporter #2)
Brooks Livermore (Reporter #3)
Rod O'Grady (Reporter #4)
Richard Clifford (Richard Wattis)
Gerard Horan (Trevor)
Alex Lowe (Denys Coop)
Georgie Glen (Rosamund Greenwood)
Richard Shelton (Waiter)
Peter Wight (Lucy's Father)
Paul Herzberg (Paul Hardwick)
James Clay (Jeremy Spenser)
Jem Wall (Spectator)
Ben Sando (Schoolboy #1)
Josh Morris (Schoolboy #2)
David Rintoul (Dr. Connell)
Sean Vanderwilt (Male Dancer #1)
Adam Perry (Male Dancer #2)
Desmond McAleer (Senior Policeman)
Judi Dench (Dame Sybil Thorndike)
Dominic Cooper (Milton Greene)
Emma Watson (Lucy)
Toby Jones (Arthur Jacobs)