 | Joaquin Phoenix als Freddie Quell |
 | Philip Seymour Hoffman als Lancaster Dodd |
 | Amy Adams als Peggy Dodd |
 | Rami Malek als Clark |
 | Laura Dern als Helen Sullivan |
 | Jesse Plemons als Val Dodd |
 | Ambyr Childers als Elizabeth Dodd |
 | Madisen Beaty als Doris Solstad |
 | Kevin J. O'Connor als Bill White |
 | Patty McCormack als Mildred Drummond |
 | Lena Endre als Mrs. Solstad |
 | Barbara Brownell als Margaret O'Brien |
 | Amy Ferguson als Martha the Salesgirl |
 | Jennifer Neala Page als Winn Manchester |
 | Christopher Evan Welch als John More |
 | Mike Howard als Rorschach Doctor |
 | Frank Bettag als Frank |
 | Mimi Cozzens als Chi Chi Crawford |
 | Jillian Bell als Susan Gregory |
 | Joshua Close als Wayne Gregory |
 | Martin Dew als Norman Conrad |
 | Kevin J. Walsh als Cliff Boyd |
 | Brady Rubin als Michelle Mortimer |
 | Jill Andre als Beatrice Campbell |
 | Barlow Jacobs als James Sullivan |
 | David Warshofsky als Philadelphia Police |
| Tom Knickerbocker als Judge |
| Zan Overall als Bartender |
 | Katie Boland als Young Woman |
| Lorelai Hoey als Baby |
 | Price Carson als V.A. Doctor |
| Sarah Shoshana David als V.A. Nurse |
| Bruce Goodchild als V.A. Doctor / Interview |
| Matt Hering als V.A. Patient |
| Dan Anderson als V.A. Patient |
 | Andrew Koponen als V.A. Patient |
 | Jeffrey W. Jenkins als V.A. Patient |
| Patrick Wilder als V.A. Patient |
| Ryan Curtis als V.A. Patient |
| Jay Laurence als V.A. Patient |
| Abraxas Adams als V.A. Patient |
| Tina Bruna als Portrait Customer |
| Kevin Hudnell als Portrait Customer |
| Hunter Craig als Portrait Customer |
| Ryder Craig als Portrait Customer |
| Rodion Salnikov als Portrait Customer |
| Emily Gilliam als Portrait Customer |
| Kody Klein als Portrait Customer |
 | W. Earl Brown als Fighting Businessman |
 | Ariel Felix als Filipino Worker |
 | Vladimir Velasco als Filipino Worker |
| John Mark Reyes als Filipino Worker |
 | Brian Fong als Filipino Worker |
| Diane Cortejo als Young Filipino Woman |
| Leonida A. Bautista als Nana |
| Myrna De Dios als Angry Filipino Woman |
| William O'Brien als Hiring Hall Voice (voice) |
| Brigitte Hagerman als New York Party Girl |
 | Charley Morgan als New York Lawyer |
| Gigi Benson als Dancer |
 | Liz Clare als Dancer |
 | Fiona Dourif als Dancer |
 | Audrey Finer als Dancer |
 | Megan Rose Fox als Dancer |
 | Baily Hopkins als Dancer |
 | Mari Kearney als Dancer |
| Sarah Klaren als Dancer |
 | Ally Johnson als Dancer |
 | Brittany Kilcoyne McGregor als Dancer |
| LaRain Ring als Dancer |
 | Kimberly Ables Jindra als Processing Patient |
| Theo Crisell als Jail Bird |
| Eban Schletter als Band (Piano) |
| Scott Rodgers als Band (Drum) |
 | Melora Walters als Band (Voice) |
| Emily Jordan als British Receptionist |
| Amanda Caryn Jobbins als British Receptionist |
| Olivia Rosemarie Barham als Pub Customer |
 | Napoleon Ryan als Pub Customer |
 | AnnaCorey als Madam Grace Love Interest (uncredited) |
 | Bill Blair als Man at the Bar (uncredited) |
| Cassandra Kulukundis | Casting |
| David Crank | Production Design |
| Jack Fisk | Production Design |
| Paul Thomas Anderson | Writer |
| Paul Thomas Anderson | Director |
| Peter McNulty | Editor |
| Amy Wells | Set Decoration |
| Jonny Greenwood | Original Music Composer |
| Leslie Jones | Editor |
| Mihai Malaimare Jr. | Director of Photography |
| Mark Bridges | Costume Design |
| Conner McKinley | Art Department Coordinator |
| Phil Bray | Still Photographer |
| Matthew Wood | Supervising Sound Editor |
| Linda Cohen | Music Supervisor |
| Jillian Giacomini | Script Supervisor |
| Chris Scarabosio | Supervising Sound Editor |
| Paula Suhy | First Assistant Editor |
| Kate Biscoe | Makeup Department Head |
| Robert T. Chestnut | Transportation Captain |
| Graeme Stewart | Music Editor |
| Garrett Warren | Stunt Coordinator |
| Chris Scarabosio | Sound Re-Recording Mixer |
| Brendan Walsh | First Assistant Editor |
| Miia Kovero | Hair Department Head |
| Chris Scarabosio | Sound Designer |
| David Acord | Sound Effects Editor |
| Michael Semanick | Sound Re-Recording Mixer |
| Mark Ulano | Sound mixer |
| Chuck Zlotnick | Still Photographer |
| Wendy M. Craig | Costume Supervisor |
| Demelza Cronin | Production Coordinator |
| Colin Anderson | Camera Operator |
| Cookie Lopez | Key Set Costumer |
| Andrea Pino | Makeup Artist |
| Paul Thomas Anderson | Producer |
| Daniel Lupi | Producer |
| Michael Bauman | Chief Lighting Technician |
| John P. Goldsmith | Set Designer |
| Robert Wilson | Hairstylist |
| Bill Holmquist | Construction Coordinator |
| Michael Lantieri | Special Effects Coordinator |
| Donna Marcione Pollack | Key Costumer |
| Germicka Barclay | Hairstylist |
| C.J. Maguire | Property Master |
| Megan Ellison | Producer |
| JoAnne Sellar | Producer |
| Aurora Bergere | Key Makeup Artist |
| Jim Krase | Construction Foreman |
| Malcolm Fife | Foley Editor |
| Melody Levy | Makeup Artist |
| Adam Somner | First Assistant Director |
| Kevin Sellers | Foley Editor |
| Cheryl Nardi | Dialogue Editor |
| Steve Slanec | Dialogue Editor |
| Kim Foscato | Dialogue Editor |
| Ted Schipper | Executive Producer |
| Adam Somner | Executive Producer |
| Mark W. Jones | Driver |
| Rudy Reachi | Assistant Property Master |
| Tom Massimini | Grip |
| Tsuyoshi Abe | Stunts |
| David Kiiskinen | Stunts |
| Lloyd Barachina | Stunts |
| Dan Brown | Stunts |
| Mark Chadwick | Stunts |
| Mark Ginther | Stunts |
| Zach Hudson | Stunts |
| Jesse V. Johnson | Stunts |
| Kevin Larson | Stunts |
| Tim Meredith | Stunts |
| Rex Reddick | Stunts |
| Brian Scannell | Stunts |
| Myke Schwartz | Stunts |
| Patrick J. Statham | Stunts |
| Gary Toy | Stunts |
| Mark Aaron Wagner | Stunts |
| Myke Schwartz | Stunt Coordinator |
| Daniel Lupi | Unit Production Manager |
| Will Weiske | Unit Production Manager |
| Eric Richard Lasko | Second Assistant Director |
| Michael Kenner | Key Grip |
| Jeff Kunkle | Dolly Grip |
| Erik L. Brown | First Assistant Camera |
| Albert Chi | Co-Producer |
| Will Weiske | Co-Producer |
| Karen Ramirez | Assistant Production Coordinator |
| Ruth De Jong | Assistant Art Director |
| Jaime Lovell | Art Department Assistant |
| Karen Teneyck | Graphic Designer |
| Keith Sale | Leadman |
| John W. Micheletos | Leadman |
| Jason Bean | On Set Dresser |
| Lawrence Hornbeck | On Set Dresser |
| Scott M. Anderson | Set Dresser |
| Mike Helbig | Set Dresser |
| Brock Helfer | Set Dresser |
| John Horning | Set Dresser |
| Michael Leonard | Set Dresser |
| Stephen McCumby | Set Dresser |
| Bret Ross | Set Dresser |
| Anthony Samora | Set Dresser |
| Roger Shaide | Set Dresser |
| Gregg Szabo | Set Dresser |
| Louis Visco | Set Dresser |
| Florencia Martin | Set Decoration Buyer |
| Jill Rolie-December | Set Decoration Buyer |
| Aaron Ali Tichenor | Second Assistant "A" Camera |
| Adam Blantz | Boom Operator |
| Juan Cisneros | Utility Sound |
| Lou Wiskes | Utility Sound |
| Jay King | Special Effects Technician |
| Mike Bonnaud | Best Boy Electrician |
| Marek Bojsza | Electrician |
| Michael Ryan Burns | Electrician |
| Thomas M. Dangcil | Electrician |
| Michael Tolochko | Electrician |
| Sophie Shellenberger | Electrician |
| James Kumarelas | Rigging Gaffer |
| Charlie McIntyre | Rigging Gaffer |
| John Morris | Best Boy Grip |
| Eric Cross | Grip |
| Brook Johnson | Grip |
| Nicholas Kirsten | Grip |
| Robert 'Boomer' McCann | Grip |
| Orlando Orona | Grip |
| Kent Baker | Key Rigging Grip |
| Gary Gill | Key Rigging Grip |
| Joseph J. Allen | Rigging Grip |
| Jose F. Barrios | Rigging Grip |
| Jonathan Leary | Rigging Grip |
| Marc Wall | Rigging Grip |
| John Barba | Casting Associate |
| Tracy Dixon | Extras Casting |
| David Kramer | Extras Casting |
| Joseph Hicks | Extras Casting |
| Aaron Moskal | Extras Casting |
| Trevor Tavares | Second Second Assistant Director |
| Marcy Grace Froehlich | Assistant Costume Designer |
| Paul Black | Costumer |
| Amy Arnold | Costumer |
| Myron Baker | Costumer |
| Andrea Cooper | Costumer |
| Amy Fegely | Costumer |
| Steve Ferry | Costumer |
| Branden Marks | Costumer |
| Kirstin Gallo | Costumer |
| Noel Leonard | Costumer |
| David Perrone | Costumer |
| Chris Proctor | Costumer |
| Valerie White | Costumer |
| Gigi Williams | Makeup Department Head |
| Amanda Williams | Hair Department Head |
| Wesley Hodge | Hairstylist |
| Lynn Tully | Hairstylist |
| Jana Vance | Foley Artist |
| Dennie Thorpe | Foley Artist |
| Frank Rinella | Foley Mixer |
| Sean England | Foley Recordist |
| Kevin Bolen | Sound Recordist |
| Stephen Urata | Sound Recordist |
| Holly Dorff | ADR Voice Casting |
| Wainani Young-Tomich | Second Second Assistant Director |
| Barry Idoine | Director of Photography |
| Dan Glass | Senior Visual Effects Supervisor |
| Gregory D. Liegey | Visual Effects Supervisor |
| Andy Foster | Visual Effects Producer |
| Nordin Rahhali | CG Supervisor |
| Chelsea Kammeyer | Visual Effects Coordinator |
| Paul E. Short | Stunts |
| Joe Bucaro III | Stunt Double |
