 | Jason Mewes als Jay |
 | Kevin Smith als Silent Bob |
 | Ben Affleck als Holden McNeil / Ben Affleck |
 | Jeff Anderson als Randal Graves |
 | Brian O'Halloran als Dante Hicks |
 | Shannon Elizabeth als Justice |
 | Eliza Dushku als Sissy |
 | Ali Larter als Chrissy |
 | Jennifer Schwalbach Smith als Missy |
 | Will Ferrell als Federal Wildlife Marshal Willenholly |
 | Jason Lee als Brodie Bruce / Banky Edwards |
 | Judd Nelson als Sheriff |
 | George Carlin als Hitchhiker |
 | Carrie Fisher als Nun |
 | Seann William Scott als Brent |
 | Jon Stewart als Reg Hartner |
 | Jules Asner als Jules Asner |
 | Steve Kmetko als Steve Kmetko |
 | Tracy Morgan als Pumpkin Escobar |
 | Gus Van Sant als Gus Van Sant |
 | Chris Rock als Chaka Luther King |
 | Jamie Kennedy als Chaka's Production Assistant |
 | Wes Craven als Wes Craven |
 | Shannen Doherty als Shannen Doherty |
 | Mark Hamill als Cocknocker |
 | Amy Noble als Silent Bob's Mother |
 | Harley Quinn Smith als Baby Silent Bob |
 | Ever Carradine als Jay's Mother |
 | Brian Andrew Saible als Baby Jay |
| Gavin Brooks als Baby Jay (voice) |
| John Willyung als Passerby |
 | Jake Richardson als Teen #1 |
| Nick Fellinger als Teen #2 |
| Vincent Pereira als Quick Stop Customer |
 | Ernest O'Donnell als Cop |
| Tango als Suzanne |
 | Marc Blucas als The Guy |
 | Matthew James als The Dude |
| Jane Silvia als Bookish Girl |
| Carmen Llywelyn als Redhead Beauty |
| Dan Etheridge als Deputy |
 | Eric Winzenried als Cop #1 |
| Jonathan Gordon als Cop #2 |
| John Maynard als Cop #3 |
| Robert Holtzman als Cop #4 |
| Tom Dorfmeister als Cop #5 |
 | Joe Quesada als Pizza Delivery Guy |
 | Diedrich Bader als Miramax Security Guard Gordon |
 | Scott Mosier als GWH2 Assistant Director / Willam Black |
| James J. McLauchlin als GWH2 Clapper Loader |
 | Joseph D. Reitman als Bluntman & Chronic Assistant Director |
| Paul Dini als Bluntman & Chronic Clapper Loader |
| Quentin Wright als William Dusky |
| Greg Owen als Suburban Kid |
| Ralph B. Meyer als Receptionist |
 | Bryan Johnson als Steve-Dave Pulasti |
 | Walt Flanagan als Walt Grover the Fanboy |
 | Renée Humphrey als Tricia Jones |
 | Joey Lauren Adams als Alyssa Jones |
 | Dwight Ewell als Hooper |
 | Alanis Morissette als That Woman (God) |
 | Morris Day als Morris Day |
 | Jerome Benton als The Time |
| Garry Johnson als The Time |
| Monte Moir als The Time |
| Torrell Ruffin als The Time |
| Ricky Smith als The Time |
 | Jason Biggs als Jason Biggs (uncredited) |
 | Greg Bronson als Bus Passenger (uncredited) |
| Thomas Burke als Blue Collar Man (uncredited) |
 | Matt Damon als Matt Damon / Will Hunting (uncredited) |
 | William B. Davis als Cigarette Smoking Man (uncredited) |
 | Alice Dinnean als Pretty Blonde Comic Book Shopper (uncredited) |
| Stephanie Entin als Convenience Store Girl (uncredited) |
| Dennyann Giambrone als Mooby's Extra (uncredited) |
| Aytl Jensen als Ghost (uncredited) |
 | Mark Steven Johnson als Movie Director (uncredited) |
| Zak Knutson als The C.L.I.T. (voice) (uncredited) |
 | Brian Lynch als Comic Book Shopper #1 (uncredited) |
 | David Mandel als Extra (uncredited) |
| Art Oughton als Clapper Loader (uncredited) |
| Derek Raser als Bus Driver (uncredited) |
| Bob Schreck als Gus Van Sant's Assistant (uncredited) |
| Scott Sener als Quiet Scott (uncredited) |
| John Strand als Miramax Security Guard #2 (uncredited) |
 | James Van Der Beek als James Van Der Beek (uncredited) |
| Nicole Vanderhoff als GWH2 Extra Glaring at PA (uncredited) |
 | Scott William Winters als Clark / Scott William Winters (uncredited) |
| Christine Sheaks | Casting |
| Kevin Smith | Director |
| Jamie Anderson | Director of Photography |
| Kevin Smith | Screenplay |
| Kevin Smith | Editor |
| Scott Mosier | Producer |
| Robert Holtzman | Production Design |
| Scott Mosier | Editor |
| Chris Friebus | Camera Loader |
| Bob Weinstein | Executive Producer |
| Harvey Weinstein | Executive Producer |
| Laura Greenlee | Co-Producer |
| James L. Venable | Original Music Composer |
| Jonathan Gordon | Executive Producer |
| Billy Clevenger | Camera Operator |
| Gary Jensen | Stunt Coordinator |
| Greg Luntzel | First Assistant Camera |
| E. Larry Oatfield | Sound Effects Editor |
| Taylor Knight | Hair Department Head |
| Douglas A. Mowat | Set Decoration |
| Hilary Momberger-Powers | Script Supervisor |
| Isis Mussenden | Costume Design |
| Randy Spendlove | Music Supervisor |
| David Schulhof | Music Supervisor |
| Elise G. Viola | Art Direction |
| Tamara Allen | Production Coordinator |
| Mark Jan Wlodarkiewicz | Music Editor |
| Tracy Bennett | Still Photographer |
| Jeff MacIntyre | Set Decoration |
| J.R. Grubbs | Sound Effects Editor |
| Robert Reed Altman | Camera Operator |
| Patricia Androff | Makeup Department Head |
| Randy Nolen | Steadicam Operator |
| Kevin Smith | Characters |
| David Morton | Gaffer |
| Dell Hake | Orchestrator |
| Charles Belardinelli | Special Effects Coordinator |
| Charles Belardinelli | Stunts |
| Mick Davies | Boom Operator |
| Korey J. Cauchon | Visual Effects Coordinator |
| Erich W. Schultz | Construction Coordinator |
| Stanley W. Pratt | Chef |
| Monica Hampton | Post Production Supervisor |
| Shoji Claus | Systems Administrators & Support |
| Tom Fox | Video Assist Operator |
| Kevin Hyman | Executive In Charge Of Production |
| Eric Reichardt | Lead Painter |
| Kevin P. Ballin | Stand In |
| Will Callahan | Electrician |
| Terry F. White | Rigging Gaffer |
| Krystyna Demkowicz | Visual Effects Producer |
| J.K. Cook | Propmaker |
| Ralph B. Meyer | Location Manager |
| Dan Engle | Sculptor |
| George A. Fleming | Standby Painter |
| Brian Chumney | Editorial Services |
| Tom Myers | Sound Re-Recording Mixer |
| Dave Kasubowski | Craft Service |
| Scott David Brown | Set Production Assistant |
| Craig Barron | Visual Effects Supervisor |
| Mike R. Berman | Leadman |
| Edward Bergen | Driver |
| Donald Erfert | Post Production Assistant |
| Derek Raser | Transportation Coordinator |
| Phil Benson | Supervising Sound Editor |
| Laurie Brugger | 3D Supervisor |
| Chris Ryan | CG Supervisor |
| Mark Alfrey | Makeup Effects |
| Justin Foxe | Casting Associate |
| Gregory Paul Austin | Construction Foreman |
| Jacqueline Eckhouse | Legal Services |
| James Jeffares | Projection |
| Olof Källström | First Assistant Editor |
| Jennifer Barin | First Assistant Sound Editor |
| Dennis S. Sands | Scoring Mixer |
| Roseanna Diana | Key Hair Stylist |
| Morgan Miles | Production Accountant |
| Margaret L. Schlaifer | Studio Teachers |
| Peter Davidson | Set Designer |
| Lori Marks | Scenic Artist |
| Christopher A. Cash | Lighting Technician |
| Susan McNamara | Production Supervisor |
| Daniel Sperry | Dolby Consultant |
| Latifa Ouaou | Art Department Coordinator |
| John Bocchicchio | Set Medic |
| Jill Footlick | Unit Production Manager |
| Jo Martin | Visual Effects Editor |
| Tom Myers | Sound Designer |
| Whit Norris | Sound Mixer |
| Brad Moorhead | Painter |
| D. Walt Cameron | Digital Compositors |
| Timothy Bird | First Assistant Director |
| Michael T. Galvin | Set Dresser |
| William D. Andersen | Key Grip |
| Max Alvarez | Wig Designer |
| Tom Boyd | Musician |
| Sue Forrest Chambers | Key Makeup Artist |
| Glenn Cotter | 3D Artist |
| Danny Andersen | Dolly Grip |
| Elizabeth Schulze | Assistant Production Coordinator |
| Hal Miles | Animatronics Designer |
| Darryl Wilson | Grip |
| Martin Hall | 3D Animator |
| Tangi Crawford | Wardrobe Supervisor |
| Gregory Ramoundos | Animatronics Supervisor |
| Sue Fox | ADR Editor |
| Heather Grierson | Second Assistant Director |
| Hildie Ginsberg | Makeup Artist |
| So-ok Kim | 2D Supervisor |
| Brandon Proctor | Sound Mix Technician |
| Michael Struk | Visual Effects Assistant Editor |
| Doug Delaney | Digital Color Timer |
| Ben Conrad | Foley Mixer |
| Reinaldo C. Vilarino | Location Assistant |
| Jennifer Desnovée | Art Department Production Assistant |
| Charles Meere III | Generator Operator |
| Matthew C. Beville | ADR Mixer |
| Kris Enos | Second Assistant Camera |
| Matthew R. Anderson | Stunt Double |
| Ron Ervin | Best Boy Grip |
| Mark Freund | Digital Supervisor |
| Vesper Burnett | Extras Casting Assistant |
| Scott 'Whitey' Anderson | Key Carpenter |
| Sal Rose | Special Effects Technician |
| Mari Wilson | Additional Script Supervisor |
| Casey Mako | Second Second Assistant Director |
| Jacqui Howell | Camera Loader |
| Audrey Miller | Assistant Accountant |
| Duncan M. Spencer | Construction Grip |
| Frank Rinella | Foley Recordist |
| Dana Denuzzi | Visual Effects Production Assistant |
| Tammy L. Smith | Extras Casting |
| Tracy Lee McGrath | Production Executive |
| Scott Mosier | Storyboard Artist |
| Patrick Loungway | Visual Effects Camera |
| Gina Boller-Dull | Assistant Chef |
| Debbie-Lynn Siegel | Payroll Accountant |
| Jason Pinardo | Production Assistant |
| Montana Creekmore | Costumer |
| Marnie Moore | Foley Artist |
| Scott Mosier | Second Unit Director |
| Kenneth Heil | Swing |
| William McLellan | Assistant Location Manager |
| Rebecca Parsons Levinthal | Set Dressing Buyer |
| John Follmer | Head of Production |
| Jason Ivey | Key Set Production Assistant |
| Lisa D. Carey | First Assistant Accountant |
| Ewa Sztompke | Dialogue Editor |
| Richard Quinn | Dialogue Editor |
| Kevin Smith | Executive Producer's Assistant |
| Jeannie Epper | Stunts |
| Sophia M. Crawford | Stunt Double |
| Shauna Duggins | Stunt Double |
| Tony Brubaker | Stunts |
| Lance Gilbert | Stunts |
| Zak Knutson | Production Secretary |
| Peter Epstein | Stunts |
| Jodi Michelle Pynn | Stunts |
