 | Ana de Armas Norma Jeane / Marilyn Monroe |
 | Adrien Brody The Playwright |
 | Bobby Cannavale The Ex-Athlete |
 | Sara Paxton Miss Flynn |
 | Lucy DeVito Ex-Athlete's Niece |
 | Julianne Nicholson Gladys |
 | Scoot McNairy Tommy Ewell / Richard Sherman |
 | Xavier Samuel Cass Chaplin |
 | Caspar Phillipson The President |
 | Evan Williams Eddy G. Robinson Jr. |
 | Rebecca Wisocky Yvet |
 | Toby Huss Whitey |
 | Catherine Dent Jean |
 | Haley Webb Brooke (Flight Attendant) |
 | Dan Butler I.E. Shinn |
 | Tygh Runyan Norma Jeane's Father |
 | David Warshofsky Mr. Z |
 | Michael Masini Tony Curtis / Josephine |
 | Chris Lemmon Jack Lemmon / Daphne |
 | Ned Bellamy Doc Fell |
 | Sonny Valicenti Casting Director |
 | Tatum Shank Dick Tracy |
 | Andrew Thacher Jiggs |
 | Dominic Leeder Bugs Bunny |
| Skip Pipo Dr. Bender |
 | Ravil Isyanov Billy Wilder |
 | Tim Ransom Rudy |
 | Rob Brownstein Acting Coach |
 | Rob Nagle Radio Announcer |
 | Ethan Cohn Assistant to the Director |
 | Mike Ostroski The Writer |
 | Christopher Kriesa Joe E. Brown |
 | Eric Matheny Joseph Cotten |
 | Kiva Jump Ward Nurse at Norwalk |
 | Patrick Brennan Joe (Photo Shoot Photographer) |
 | Ryan Vincent Uncle Clive |
 | Vanessa Lemonides Marilyn Singing Voice (voice) |
 | Michael Drayer Deputy Will Bonnie |
| Claudia Smith Dee-Dee |
 | Mary-Pat Green Tracey |
 | Ron West Dr. Spindel (Abortion Doctor) |
| Flynn Platt Actor in Play |
 | Scott Wilder Chloroform Man #1 |
 | Sal Landi Chloroform Man #2 |
 | Seth Meriwether 5th Helena Messenger |
| Darrin M. Schlie Assistant Camera Man |
 | Julián Rebolledo Trailer Announcer / Newsreel Announcer |
 | Allan Havey Dr. Greenson |
 | Tereza Rizzardi Ex-Athlete's Momma |
 | Lily Fisher Young Norma Jeane |
| Spencer Taylor Assistant Director |
 | Denna Thomsen Choreographer |
 | Parker Harris Diamonds Dancer |
 | Ryan Kanfer Diamonds Dancer |
| Scott Hislop Diamonds Dancer |
| Parker Blakely Diamonds Dancer |
 | Chris Moss Diamonds Dancer |
 | Cris Cangero Diamonds Dancer |
| Brandon Beltran Diamonds Dancer |
| Patrick Ellis Diamonds Dancer |
| Luke Kamppila Diamonds Dancer |
| Richard Biglia Diamonds Dancer |
| Arne Gjelten Diamonds Dancer |
| Russell Ridgeway Diamonds Dancer |
| Jake Brandorff Diamonds Dancer |
 | Bryan Anthony Diamonds Dancer |
 | Jeremy Shouldis Tuxedo #2 (uncredited) |
 | Steve Bannos Brentwood Doctor (uncredited) |
 | Dieterich Gray Photographer's Assistant (uncredited) |
 | Mia McGovern Zaini Young Norma Jeane (voice) (uncredited) |
 | Garret Dillahunt Producer (uncredited) |
 | Eden Riegel Esther (uncredited) |
 | Judy Kain Severe Woman (uncredited) |
| Editing | |
| Adam Robinson | Editor |
Art | |
| Florencia Martin | Production Design |
Lighting | |
| Christopher Ferguson | Lighting Design |
Crew | |
| Jessica Jordan | Additional Script Supervisor |
Directing | |
| Kristin Bree Calabrese | Script Supervisor |
Visual Effects | |
| Jindřich Červenka | Visual Effects Supervisor |
Sound | |
| Jon Flores | Sound Effects Editor |
| Warren Ellis | Original Music Composer |
| Nick Cave | Original Music Composer |
Costume & Make-Up | |
| Gary Archer | Prosthetics |
Production | |
| Christina Oh | Executive Producer |
| Tracey Landon | Producer |
Costume & Make-Up | |
| Jennifer Johnson | Costume Design |
Writing | |
| Andrew Dominik | Writer |
Production | |
| Brad Pitt | Producer |
Directing | |
| Andrew Dominik | Director |
Art | |
| Erin Fite | Set Decoration |
Costume & Make-Up | |
| Monica Caldera | Makeup Artist |
| Amy Lederman | Makeup Artist |
| Lizbeth Williamson | Makeup Artist |
| Rosanna Montes | Makeup Artist |
Art | |
| Masako Masuda | Set Designer |
| Joseph Feld | Set Designer |
Costume & Make-Up | |
| Liz Briseno | Makeup Artist |
Visual Effects | |
| Beau Parsons | Visual Effects Supervisor |
| Chris Wells | Visual Effects |
Costume & Make-Up | |
| Benjamin Robin | Makeup Artist |
| Annie Tagge | Makeup Artist |
Art | |
| Don Elliott | Set Dresser |
Costume & Make-Up | |
| Desiree Falcon | Makeup Artist |
| Claudia Humburg | Makeup Artist |
| Tracy Manzo | Makeup Artist |
| Cheri Minns | Makeup Artist |
Art | |
| Allison Isenberg | Set Decoration Buyer |
Visual Effects | |
| Virginia Cefaly | Visual Effects Producer |
| Peter Denomme | Visual Effects Producer |
| Richard Ivan Mann | Visual Effects Producer |
Costume & Make-Up | |
| Felicia Molinari | Set Costumer |
| Marina Marit | Set Costumer |
Visual Effects | |
| Jon Campfens | Visual Effects Supervisor |
| Luca Saviotti | Visual Effects Supervisor |
| Christine McDermott | Visual Effects Producer |
| Phillip Moses | Visual Effects Supervisor |
Costume & Make-Up | |
| Betsy Glick | Costume Supervisor |
Visual Effects | |
| Raoul Bolognini | Visual Effects Producer |
Crew | |
| Denna Thomsen | Choreographer |
Sound | |
| Travis McKay | ADR Mixer |
Editing | |
| Andrea Norby | Additional Editor |
| Jennifer Lame | Additional Editor |
| John Paul Horstmann | Additional Editor |
Sound | |
| Leslie Shatz | Sound Designer |
| Leslie Shatz | Sound Re-Recording Mixer |
Production | |
| Kristan Berona | Extras Casting |
Art | |
| Erik Soderstrom | Set Dresser |
Sound | |
| Eva Rismanforoush | Utility Sound |
| Ben Greaves | Boom Operator |
| Lisa Pinero | Sound Mixer |
| Chris Navarro | ADR Mixer |
| Daniel Ward | Foley Editor |
Production | |
| Scott Robertson | Producer |
| Dede Gardner | Producer |
Writing | |
| Joyce Carol Oates | Novel |
Production | |
| Laray Mayfield | Casting |
Crew | |
| Andrea VanEpps | Stunts |
| Tracy Keehn-Dashnaw | Stunt Coordinator |
| Shauna Duggins | Stunt Coordinator |
| Kimberly Shannon Murphy | Stunt Double |
Art | |
| Michael Cutler | Set Dresser |
Production | |
| Jameson Everett | Production Assistant |
Visual Effects | |
| Andrew Degryse | VFX Artist |
Production | |
| Liv Banks | Production Supervisor |
Directing | |
| Aaron C. Fitzgerald | Second Assistant Director |
Art | |
| Peter Andrus | Art Direction |
Production | |
| Tracey Landon | Unit Production Manager |
Costume & Make-Up | |
| Jaime Leigh McIntosh | Hair Department Head |
| Lynnae Duley | Key Hair Stylist |
Production | |
| Jeremy Kleiner | Producer |
Costume & Make-Up | |
| Tina Roesler Kerwin | Makeup Department Head |
Camera | |
| Chayse Irvin | Director of Photography |
