 | Jim Carrey als Truman Burbank |
 | Laura Linney als Meryl Burbank / Hannah Gill |
 | Noah Emmerich als Marlon / Louis Coltrane |
 | Natascha McElhone als Lauren Garland / Sylvia |
 | Holland Taylor als Angela Montclair / Alanis Montclair |
 | Ed Harris als Christof |
 | Paul Giamatti als Simeon |
 | Brian Delate als Walter Moore / Kirk Burbank |
 | Peter Krause als Lawrence |
 | Blair Slater als Young Truman |
 | Heidi Schanz als Vivien |
 | Una Damon als Chloe |
 | Krista Lynn Landolfi als Bar Waitress |
 | O-Lan Jones als Bar Waitress |
 | Ron Taylor als Ron |
 | Don Taylor als Don |
| Ted Raymond als Spencer |
 | Harry Shearer als Mike Michaelson |
 | Jeanette Miller als Senior Citizen |
 | Philip Glass als Keyboard Artist |
 | Joe Minjares als Bartender |
 | Philip Baker Hall als Network Executive |
 | John Pleshette als Network Executive |
 | Terry Camilleri als Man in Bathtub |
 | Joel McKinnon Miller als Garage Attendant |
 | Judy Clayton als Travel Agent |
| Fritz Dominique als Truman's Neighbor |
| Angel Schmiedt als Truman's Neighbor |
| Nastassja Schmiedt als Truman's Neighbor |
| Muriel Moore als Teacher |
 | Mal Jones als News Vendor |
| Judson Vaughn als Insurance Co-Worker |
| Earl Hilliard Jr. als Ferry Worker |
 | David Andrew Nash als Bus Driver / Ferry Captain |
| Jim Towers als Bus Supervisor |
| Savannah Swafford als Little Girl in Bus |
 | Antoni Corone als Security Guard |
 | Mario Ernesto Sánchez als Security Guard |
| John Roselius als Man at Beach |
| Kade Coates als Truman (4 years) |
 | Marcia DeBonis als Nurse |
 | Sam Kitchin als Surgeon |
| Sebastian Youngblood als Orderly |
| Dave Corey als Hospital Security Guard |
| Mark Alan Gillott als Policeman at Power Plant |
| Jay Saiter als Policeman at Truman's House |
| Tony Todd als Policeman at Truman's House |
| Marco Rubeo als Man in Christmas Box |
| Daryl Davis als Couple at Picnic Table |
| Robert Davis als Couple at Picnic Table |
| R.J. Murdock als Production Assistant |
| Matthew McDonough als Man at Newsstand |
| Larry McDowell als Man at Newsstand |
| Joseph Lucus als Ticket Taker |
| Logan Kirksey als TV Host |
 | Adam Tomei als Control Room Director |
| John Pramik als Keyboard Artist |
| Al Foster als Bar Patron |
| Zoaunne LeRoy als Bar Patron |
 | Millie Slavin als Bar Patron |
 | Dona Hardy als Senior Citizen |
 | Tom Simmons als Garage Attendant |
 | Susan Angelo als Mother |
| Carly Smiga als Daughter |
 | Yuji Okumoto als Japanese Family |
| Kiyoko Yamaguchi als Japanese Family |
 | Saemi Nakamura als Japanese Family |
 | Sergio Kato als Production Assistant (uncredited) |
| Jake Eberle als Classical Clive (uncredited) |
 | Marc Macaulay als Citizen Searching Truman (uncredited) |
| Melissa Fitzgerald als Girl Dancing with Marlon (uncredited) |
| Erik Rodenhiser als Man Dancing / Man in Control Room (uncredited) |
| Andrew Niccol | Producer |
| Andrew Niccol | Writer |
| Adam Schroeder | Producer |
| Scott Rudin | Producer |
| Peter Weir | Director |
| Edward S. Feldman | Producer |
| Peter Biziou | Director of Photography |
| Richard Luke Rothschild | Co-Producer |
| Lee Smith | Editor |
| Philip Steuer | Production Supervisor |
| Phil Heywood | Sound Re-Recording Mixer |
| Rick Lisle | Sound Effects Editor |
| Burkhard von Dallwitz | Original Music Composer |
| Wilma Garscadden-Gahret | Script Supervisor |
| Bunny Andrews | Music Editor |
| Gail Laskowski | Art Department Coordinator |
| Howard Feuer | Casting |
| Mary C. Lane | Costume Supervisor |
| Marilyn Matthews | Costume Design |
| Nancy Haigh | Set Decoration |
| Dennis Gassner | Production Design |
| Richard L. Johnson | Art Direction |
| Lynn Pleshette | Executive Producer |
| Art Rochester | Production Sound Mixer |
| Peter Townend | Sound Effects Editor |
| Melinda Sue Gordon | Still Photographer |
| Martin Oswin | Sound Re-Recording Mixer |
| Jake Brake | Stunts |
| Reese Banta | Stunts |
| Larry Nicholas | Stunts |
| Al Jones | Stunts |
| Tim Gilbert | Stunts |
| Pat Banta | Stunt Coordinator |
| Mike Christopher | Stunts |
| John Zimmerman | Stunts |
| Peewee Piemonte | Stunts |
| Martin Grace | Stunts |
| Lee Nashold | Stunts |
| Ann Bellinger | Stunts |
| Shane Dixon | Stunts |
| Charlie Brewer | Stunts |
| Steve Santosusso | Stunts |
| Jimmy Waitman | Stunts |
| Sandra Lee Gimpel | Stunts |
| Steve Brodsky | Transportation Coordinator |
| Randy Peterson | Transportation Captain |
| Kevin C. Scott | Transportation Captain |
| Mary Brunner | Production Assistant |
| Kevin Carney | Production Assistant |
| Aloura Melissa Charles | Production Assistant |
| Jennifer Cook | Production Assistant |
| Amy Dean | Production Assistant |
| Tim Dutrow | Production Assistant |
| Gene Gillespie | Production Assistant |
| J.J. Geary | Craft Service |
| Craig Glaser | Craft Service |
| Jeff Gross | Production Assistant |
| Shawn Kirby | Production Assistant |
| Joshua Milne | Production Assistant |
| Jackson Peel | Production Assistant |
| Andrew Piccone | Production Assistant |
| Judith Pritchard | Production Coordinator |
| Antonia Proscia | Payroll Accountant |
| Brian Ringseis | Production Assistant |
| Mike Triplett | Production Assistant |
| Adrienne Vergos | Travel Coordinator |
| Mark Walbaum | Production Assistant |
| Michael Healey | Colorist |
| Sande Alessi | Extras Casting |
| Ellen Jacoby | Location Casting |
| Mark Vollmer | Grip |
| Scott Stuart | Electrician |
| Brian Skilton | Electrician |
| Katie Nilson | Electrician |
| Ron Newburn | Electrician |
| Gordy Jorian | Electrician |
| Blake Hill | Electrician |
| Roy Gittens | Electrician |
| Bob Baron | ADR Mixer |
| Nick Breslin | Assistant Sound Editor |
| Randall L. Johnson | Boom Operator |
| Linda Murphy | Boom Operator |
| David M. Bernstein | Second Second Assistant Director |
| Alan B. Curtiss | First Assistant Director |
| Michael J. McAlister | Second Unit Director |
| Jonathan Watson | Second Assistant Director |
| William M. Anderson | Editor |
| Richard Luke Rothschild | Unit Production Manager |
| Joseph P. Kane | Unit Production Manager |
| Michael J. McAlister | Visual Effects Supervisor |
| Marco Rubeo | Assistant Art Director |
| Thomas Minton | Set Designer |
| Doug Harlocker | Property Master |
| Scott Getzinger | Assistant Property Master |
| Peter Walts | Assistant Chief Lighting Technician |
| Patric J. Abaravich | Assistant Chief Lighting Technician |
| Chris Centrella | First Company Grip |
| Cheryl Beasley Blackwell | Set Costumer |
| Fran Allgood | Costumer |
| Mark Weissenfluh | Leadman |
| Eric Rosenberg | Graphic Designer |
| Leslie 'Tinker' Linville | Set Dresser |
| James P. Meehan | Set Dresser |
| Richard F. Anderson | Assistant Set Dresser |
| Andrew L. Ullman | Location Manager |
| Jeff Passanante | Construction Coordinator |
| James M. Davis | Construction Foreman |
| Larz Anderson | Special Effects |
| Kevin D. Ross | Additional Editing |
| Karin Whittington | Supervising ADR Editor |
| Andrew Plain | Dialogue Editor |
| Tim Jordan | Dialogue Editor |
| Barbara Harris | ADR Voice Casting |
| Deborah Simmrin | Unit Publicist |
| Sandy O'Neill | Unit Publicist |
| Meredith Tucker | Casting Associate |
| Mike Milliken | Color Timer |
| Theresa Repola Mohammed | Negative Cutter |
| Juliette Yager | Visual Effects Producer |
| Joe Pasquale | 3D Supervisor |
| David Lingenfelser | Digital Compositor |
| Karen Klein | Roto Supervisor |
| Janek Sirrs | Digital Compositor |
| Janet Yale | Digital Compositor |
| Eric Weinschenk | Digital Compositor |
| Travis Baumann | Digital Compositor |
| Stella Bogh | Digital Compositor |
| Craig Barron | Visual Effects Supervisor |
| Philip Glass | Music |
| Philip Glass | Original Music Composer |
| Wojciech Kilar | Original Music Composer |
