 | Britney Spears als Lucy Wagner |
 | Zoe Saldaña als Kit |
 | Taryn Manning als Mimi |
 | Anson Mount als Ben |
 | Dan Aykroyd als Pete Wagner |
 | Kim Cattrall als Caroline |
 | Justin Long als Henry |
 | Beverly Johnson als Kit's Mom |
 | Bahni Turpin als Ms. Jenson |
| Kool Moe Dee als Bar Owner |
| Richard Voll als Dylan |
 | Katherine Boecher als Dylan's Other Girl |
 | Dave Allen als Bar Patron |
 | Kyle Davis als High School Burnout |
 | Branden Williams als Kurt |
| Celina Belizan als Kit's Friend |
 | Shonda Farr als Kit's Friend |
 | Jaret Reddick als Graduation Band |
| Christopher Van Malmsteen als Graduation Band |
| Erik Rodham Clinton als Graduation Band |
| Gary Wiseass als Graduation Band |
 | Ritchie Montgomery als Customer |
 | Brandon Henschel als Guy in Bar |
| Janet May als Annie |
| Seth Romatelli als Talent Organizer |
| Jesse Camp als Audition Applicant |
 | Jamie Lynn Spears als Young Lucy Wagner |
| Dajine Colon als Young Kit |
| Crystal Milton als Young Mimi |
 | Cullen G. Chambers als Kit's Father (uncredited) |
| Carl Conti als Paramedic (uncredited) |
| Nick Pellegrino als High School Vice Principal (uncredited) |
| Tamra Davis | Director |
| Shonda Rhimes | Writer |
| David Gale | Executive Producer |
| Johnny Wright | Executive Producer |
| Barry Kingston | Art Direction |
| Jack Blanchard | Set Dresser |
| James J. Burke | Art Department Coordinator |
| Michael P. Cook | Foley Editor |
| Giselle Spence | Seamstress |
| Cougar Easley | Lighting Technician |
| Baqi Kopelman | Lighting Technician |
| Daniel DiAlba | Propmaker |
| Kurt Jones | Steadicam Operator |
| Frank J. Zito III | Set Decoration |
| Robert Lorenz | Second Unit Director of Photography |
| Michael R. Blaich | Painter |
| Melissa Kent | Editor |
| Waldemar Kalinowski | Production Design |
| Al Goto | Stunt Coordinator |
| Harry Harris III | Stunt Coordinator |
| Paul Beard | Lighting Technician |
| Antoinette Levine | Location Manager |
| Melissa Cummins Lorenz | Second Assistant Director |
| Clive Calder | Executive Producer |
| Jim C. Johnson | Leadman |
| Buddy Carr | Dolly Grip |
| Rob Forrest | Dolly Grip |
| Alexis Seymour | First Assistant Editor |
| Steven Price | Musician |
| Victor Ho | Unit Production Manager |
| Scott A. Stephens | Property Master |
| Jim Fitzpatrick | Sound Re-Recording Mixer |
| Jonathan McHugh | Co-Producer |
| Michael Hoapili | Assistant Property Master |
| Michael Spitaletto | Painter |
| Richard Foreman Jr. | Still Photographer |
| Andi Kasen Bergman | Assistant Editor |
| Daniel Allan Carlin | Music Supervisor |
| Kim Davis-Wagner | Casting |
| Coril Joseph | Cableman |
| Jon Lindsay | Camera Loader |
| George Marsala | Grip |
| Gregory Romero | Grip |
| Isabela Braga | Key Costumer |
| Linda Gardar | Key Costumer |
| Dena Matranga | Set Costumer |
| Theresa Repola Mohammed | Negative Cutter |
| Jon Sperry | Dialect Coach |
| Jan McWilliams | Script Supervisor |
| Van Toffler | Executive Producer |
| Robert Lorenz | First Assistant Director |
| Will Grant | Set Dresser |
| Joel Shryack | Boom Operator |
| Richard Fezzey | Key Grip |
| Tim Broderick | Painter |
| Helen Kozora | Set Decoration Buyer |
| Susumu Tokunow | Production Sound Mixer |
| Chris Ekstrom | Grip |
| Vic Keatley | Lighting Technician |
| Geoff Alexander | Conductor |
| Larry Rudolph | Executive Producer |
| Raul Colletta | Video Assist Operator |
| Andy C. Huber | Rigging Gaffer |
| Caroline B. Marx | Costume Supervisor |
| Julian Kershaw | Orchestrator |
| Rob Lee | Co-Producer |
| Florence Fellman | Set Decoration |
| Wendy Schecter | Costume Design |
| Scott Browner | Camera Operator |
| Scott Gillis | Grip |
| Cate Engel | Casting Assistant |
| Gareth Cousins | Music Programmer |
| Lucas Moore | Studio Teachers |
| Rudy Pi | Sound Re-Recording Mixer |
| Shaina Holmes | Digital Compositors |
| Tom Conrad | Video Assist Operator |
| Gareth Cousins | Mixing Engineer |
| Peter Mugar | Painter |
| Frank J. Zito III | Leadman |
| Aaron Levy | Sound Recordist |
| Trevor Jones | Orchestrator |
| Ann Carli | Producer |
| Matthew R. Hannon | Post Production Supervisor |
| Lloyd Lee Barnett | Digital Compositors |
| Jason Goodowens | Grip |
| Paul Olinde | Lighting Technician |
| Dustin Pedone | Lighting Technician |
| Gordan Nikolitch | Music Director |
| Kimberly Greene | Makeup Department Head |
| Jim Harrison | Supervising Music Editor |
| Justine Arteta | Casting |
| Charles Page | Construction Foreman |
| Eric Alan Edwards | Director of Photography |
| Richard Partlow | Foley Artist |
| Trevor Jones | Original Music Composer |
| Paul Horn | First Assistant Camera |
| Yuri Karjane | Second Assistant Camera |
| Paul Daley | Chief Lighting Technician |
| Giovanni Zelko | Lighting Technician |
| Michael Lowrance | Lighting Technician |
| Lou Isman | Best Boy Grip |
| Lori McCoy-Bell | Key Hair Stylist |
| Lana Heying | Assistant Hairstylist |
| Joni Powell | Assistant Makeup Artist |
| Bob Hawk | Propmaker |
| Charles Phillips | Construction Coordinator |
| Beverley Hartigan | Special Effects Coordinator |
| Paul B. Clay | Sound Supervisor |
| Michael Hoskinson | ADR Editor |
| Michael Hoskinson | Dialogue Editor |
| Michael P. Cook | Dialogue Editor |
| Rich Steven | Dialogue Editor |
| Patrick O'Sullivan | Sound Effects Editor |
| Ann Hadsell | ADR Mixer |
| Ellen Heuer | Foley Artist |
| Lee Tinkham | Foley Mixer |
| Casey Troutman | Foley Artist |
| David Kreutzer | Sound Assistant |
| Nick Clay | Sound Assistant |
| Trevor Jones | Musician |
| Geoff Alexander | Orchestrator |
| Victoria Seale | Music Coordinator |
| Karen Roberts | Production Accountant |
| Rayshelle Willis | Assistant Accountant |
| Mae Makeen | Payroll Accountant |
| Linda Warrilow | Production Office Coordinator |
| Roger Jones | Production Secretary |
| Paul Feddersen | Transportation Coordinator |
| David Gerry | Transportation Captain |
| Peter Alwazzan | Extras Casting |
| Poland Perkins | Transportation Coordinator |
| Larry Arceneaux | Transportation Co-Captain |
| Sonny Messina | Transportation Co-Captain |
| Mike Stanwick | Color Timer |
| Britney Spears | Executive Producer |
| Debbie Evans | Stunts |
