Full Cast & Crew
Cast (in credits order)
| Michelle Williams | ... | Self / Marilyn Monroe | |
| Eddie Redmayne | ... | Self / Colin Clark | |
| Emma Watson | ... | Self | |
| Judi Dench | ... | Self / Dame Sybil Thorndike | |
| Simon Curtis | ... | Self - Director | |
| Kenneth Branagh | ... | Self - Laurence Olivier | |
| Dougray Scott | ... | Self - Arthur Miller | |
| Julia Ormond | ... | Self - Vivien Leigh | |
| David Parfitt | ... | Self - Producer | |
| Zoë Wanamaker | ... | Self - Paula Strasberg | |
| Rest of cast listed alphabetically: | |||
| Sybil Thorndike | ... | Self (archive footage) | |
| Dominic Cooper | ... | Milton Greene (archive footage) (uncredited) | |
| Ryan Gosling | ... | Dean (archive footage) (uncredited) | |
| Bob Hoskins | ... | Vivian Van Damm (archive footage) (uncredited) | |
| Toby Jones | ... | Arthur Jacobs (archive footage) (uncredited) | |
| Vivien Leigh | ... | Self (archive footage) (uncredited) | |
| Arthur Miller | ... | Self (archive footage) (uncredited) | |
| Marilyn Monroe | ... | Self (archive footage) (uncredited) | |
| Laurence Olivier | ... | Self (archive footage) (uncredited) | |
