 | Christina Ricci als Kathleen 'Kat' Harvey |
 | Bill Pullman als Dr. James Harvey |
 | Malachi Pearson als Casper (voice) |
 | Cathy Moriarty als Carrigan Crittenden |
 | Eric Idle als Paul 'Dibbs' Plutzker |
 | Joe Alaskey als Stinkie (voice) |
 | Joe Nipote als Stretch (voice) |
 | Brad Garrett als Fatso (voice) |
 | Devon Sawa als Casper on Screen |
 | Dan Aykroyd als Dr. Raymond Stantz (uncredited) |
 | Chauncey Leopardi als Nicky |
 | Spencer Vrooman als Andreas |
 | Garette Ratliff Henson als Vic DePhillippi |
 | Jessica Wesson als Amber Whitmire |
 | Amy Brenneman als Amelia Harvey |
 | Ben Stein als Mr. Rugg |
 | Don Novello als Father Guido Sarducci |
 | Terry Murphy als Terry Murphy ('Hard Copy') |
 | Ernestine Mercer als Woman Being Interviewed |
| Doug Bruckner als Reporter (voice) |
 | John Kassir als The Crypt Keeper (voice) |
 | Wesley Thompson als Mr. Curtis |
| Michael Dubrow als Student #1 |
| J.J. Anderson als Student #2 |
 | Jess Harnell als Arnold (voice) |
| Michael McCarty als Drunk in Bar |
| Micah Winkelspecht als Student |
| Mike Simmrin als Phantom |
 | Fred Rogers als Mr. Rogers (archive footage) |
 | Rodney Dangerfield als Rodney Dangerfield (uncredited) |
 | Clint Eastwood als Clint Eastwood (uncredited) |
 | Mel Gibson als Mel Gibson (uncredited) |
| Elise Main als Little Red Riding Hood (uncredited) |
| Tony Stef'Ano als Kid at Party (uncredited) |
| Janette Andrade als Student (uncredited) |
 | Bill Farmer als Fatso's Burping (uncredited) |
 | Harry Shearer als Radio announcer (uncredited) |
| Michael Kahn | Editor |
| Jeffrey A. Montgomery | Executive Producer |
| James Horner | Original Music Composer |
| Dean Cundey | Director of Photography |
| Gerald R. Molen | Executive Producer |
| Steven Spielberg | Executive Producer |
| Colin Wilson | Producer |
| Brad Silberling | Director |
| Rosanna Norton | Costume Design |
| Mark Anthony Austin | Animation Supervisor |
| Annette Haywood-Carter | Script Supervisor |
| Phil Nibbelink | Animation Director |
| Ed Verreaux | Art Direction |
| Eric Armstrong | Animation Director |
| Ana Maria Quintana | Script Supervisor |
| Nancy Nayor | Casting |
| Leslie Dilley | Production Design |
| Rosemary Brandenburg | Set Decoration |
| Miguel A. Fuertes | Animation Supervisor |
| Daniel Maltese | Art Direction |
| Paul Deason | Associate Producer |
| Steve Waterman | Co-Producer |
| Paul Deason | Unit Production Manager |
| Steve E. Andrews | First Assistant Director |
| Michele Panelli-Venetis | Second Assistant Director |
| Janet Healy | Digital Effects Producer |
| Michael Lantieri | Special Effects Supervisor |
| Steven R. Molen | Production Supervisor |
| Gary Rydstrom | Sound Designer |
| Richard Hymns | Supervising Sound Editor |
| Gary Hymes | Stunt Coordinator |
| Adam Shankman | Choreographer |
| Clyde E. Bryan | First Assistant "A" Camera |
| Jolanda R. Wipfli | First Assistant "B" Camera |
| Raymond Stella | Second Unit Director of Photography |
| Raymond Stella | "A" Camera Operator |
| Charles M. Wilborn | Sound Mixer |
| Stephen Sfetku | Second Assistant "B" Camera |
| Casey Hotchkiss | "B" Camera Operator |
| David James | Still Photographer |
| Ronald Batzdorff | Still Photographer |
| Kenneth Schwarz | Boom Operator |
| Alan Cody | Assistant Editor |
| Patrick Crane | Assistant Editor |
| Peter Fandetti | Assistant Editor |
| Michael Fallavollita | Assistant Editor |
| Eric H. Sandberg | Costume Supervisor |
| Cheryl Beasley Blackwell | Key Costumer |
| Sharon Iris Crall | Costumer |
| Anne Marie Stein | Unit Publicist |
| Christina Smith | Key Makeup Artist |
| Matthew W. Mungle | Makeup Artist |
| Monty Westmore | Makeup Artist |
| Michael Orefice | Chief Lighting Technician |
| Steve Chandler | Assistant Chief Lighting Technician |
| Vincent Contarino | Lighting Technician |
| Ben O. Graham | Lighting Technician |
| Joseph J. Orefice | Lighting Technician |
| Mark Soucie | Lighting Technician |
| Anthony Wong | Lighting Technician |
| Ron Cardarelli | Key Grip |
| Sid Lucero | Best Boy Grip |
| Dave Wachtman | Dolly Grip |
| Steven Cardarelli | Grip |
| Marty Dobkousky | Grip |
| Craig Tex Barnett | Special Effects |
| Louie Lantieri | Special Effects |
| Tim Moran | Special Effects |
| Daniel B. Ossello | Special Effects |
| Greg Papalia | Assistant Art Director |
| Brad Ricker | Assistant Art Director |
| Antoinette J. Gordon | Set Designer |
| Gary A. Lee | Set Designer |
| Josh Lusby | Set Designer |
| Gene Nollman | Set Designer |
| James P. Meehan | Set Dresser |
| Jonathan Bobbitt | Set Dresser |
| Eric Ramirez | Set Dresser |
| Allen Tinkley | Location Manager |
| Debbie DeRango | Casting Associate |
| Marvin Salsberg | Construction Coordinator |
| Thomas Meikle | Sculptor |
| Anthony 'AJ' Leonardi Jr. | Standby Painter |
| Jeff Brown | Greensman |
| Tim Gonzales | Craft Service |
| Jane Goe | Production Controller |
| Denny Caira | Transportation Coordinator |
| Michael Antunez | Transportation Captain |
| Steve Luce | Driver |
| Wallace Frick | Driver |
| William Ballard | Driver |
| Richard Padgett | Driver |
| Gary Kincaid | Driver |
| Steve Sorkin | Driver |
| Ronald Stinton | Driver |
| Daniel B. Briggs | Driver |
| Rhona Gordon | Studio Teacher |
| Adria Later | Studio Teacher |
| Kenneth Zunder | Additional Photography |
| Doug Jones | Negative Cutter |
| Pam Kaye | Production Accountant |
| Gary Summers | Sound Re-Recording Mixer |
| Gary Rydstrom | Sound Re-Recording Mixer |
| Shawn Murphy | Sound Re-Recording Mixer |
| Teresa Eckton | Sound Effects Editor |
| Frank E. Eulner | Sound Effects Editor |
| Hugh Waddell | ADR Editor |
| Michael Silvers | Dialogue Editor |
| Sara Bolder | Dialogue Editor |
| Sandina Bailo-Lape | Foley Editor |
| Dennie Thorpe | Foley Artist |
| Tom Barwick | Foley Artist |
| Tony Eckert | Foley Recordist |
| Jim Henrikson | Supervising Music Editor |
| Joe E. Rand | Music Editor |
| Dean Drabin | ADR Mixer |
| Judith M. Brown | Studio Teacher |
| Ann Hadsell | ADR Recordist |
| Jim Passon | Color Timer |
| Gary Burritt | Negative Cutter |
| Seth Arnett | Stunts |
| Mickey Cassidy | Stunts |
| Rusty Hanson | Stunts |
| Gary Hymes | Stunts |
| Les Larson | Stunts |
| Jon W. Kishi | Stunts |
| Donna Evans | Stunts |
| Carol Neilson | Stunts |
| Larry Nicholas | Stunts |
| Victor Paul | Stunts |
| Patricia M. Peters | Stunts |
| Pat Romano | Stunts |
| Birgit K. Schier | Stunts |
| Myke Schwartz | Stunts |
| Brian Smrz | Stunts |
| Fred Waugh | Stunts |
| Joseph Oriolo | Characters |
| Jeff Franklin | Co-Producer |
| Sherri Stoner | Writer |
| Deanna Oliver | Writer |
| Anita Hart | Stunts |
| Laura Albert | Stunts |
| Erik Stabenau | Stunts |
| Chere Rae | Stunts |
| George Hull | Storyboard Artist |
