 | Macaulay Culkin als Richie Rich |
 | John Larroquette als Lawrence Van Dough |
 | Edward Herrmann als Richard Rich |
 | Christine Ebersole als Regina Rich |
 | Jonathan Hyde als Herbert Cadbury |
 | Michael Maccarone als Tony |
| Joel Robinson als Omar |
| Jonathan Hilario als Pee Wee |
 | Rory Culkin als Young Richie |
 | Michael McShane als Professor Keenbean |
 | Chelcie Ross als Ferguson |
 | Mariangela Pino als Diane Pazinski |
 | Stephi Lineburg als Gloria Pazinski |
 | Reggie Jackson als Baseball Coach |
 | Claudia Schiffer als Aerobics Instructor |
 | Ben Stein als School Teacher |
 | Rachel Stephens als Richie's Secretary |
 | Frank Welker als Special Vocal Effects (voice) |
| Wanda Christine als Newswoman at Factory |
| Stacy Logan als Nash |
| Eddie Bo Smith Jr. als Ambler |
| Rob Riley als President |
| David Fawcett als Chauffeur |
 | Dawn Maxey als Van Dough's Secretary |
| Ben Stein als Teacher |
| Don Burgess | Director of Photography |
| Alan Silvestri | Original Music Composer |
| Jim Jennewein | Screenplay |
| Malcolm Campbell | Editor |
| Tom S. Parker | Screenplay |
| Joel Silver | Producer |
| Donald Petrie | Director |
| John Davis | Producer |
| Mary J. Carlson | Script Supervisor |
| Lisa Jensen | Costume Design |
| Margery Simkin | Casting |
| James H. Spencer | Production Design |
| Neil Tolkin | Story |
| Jeffrey A. Montgomery | Co-Producer |
| Jacqueline George | Co-Producer |
| Dan Kolsrud | Executive Producer |
| Jon Shapiro | Executive Producer |
| Jack Gill | Stunts |
| Charlie Brewer | Stunts |
| Mickey Cassidy | Stunts |
| Michael Cassidy | Stunts |
| Danny Epper | Stunts |
| Jeff Evans | Stunts |
| Greg Gault | Stunts |
| Tabby Hanson | Stunts |
| Wendy Wanderman | Associate Producer |
| Richard H. Prince | Production Manager |
| Geoffrey Hansen | First Assistant Director |
| Michael Samson | Second Assistant Director |
| Peter Donen | Visual Effects Supervisor |
| William F. Matthews | Art Direction |
| James F. Truesdale | Assistant Art Director |
| Gary Baugh | Assistant Art Director |
| Patricia Malone | Set Decoration |
| John H. Anderson | Set Decoration |
| Nigel A. Boucher | Leadman |
| John Vargo | Leadman |
| Karen Fletcher Trujillo | Set Designer |
| Suzan Wexler | Set Designer |
| Elizabeth Shelton | Assistant Costume Designer |
| Keith G. Lewis | Costume Supervisor |
| Thomas J. Busch | Location Manager |
| Wileen Dragovan | Assistant Location Manager |
| Douglas S. Ornstein | Additional Second Assistant Director |
| Peter Bankins | Property Master |
| Peter James | Additional Photography |
| Josh Bleibtreu | "A" Camera Operator |
| David M. Dunlap | "A" Camera Operator |
| David Morenz | First Assistant "A" Camera |
| Peter Kuttner | First Assistant "B" Camera |
| Dave June | First Assistant "B" Camera |
| Andrew Casey | First Assistant "B" Camera |
| Don Smetzer | Still Photographer |
| Joel David Warren | Still Photographer |
| Dale R. Janus | Boom Operator |
| Dick Oakes | Chief Lighting Technician |
| Nick Thomas | Assistant Chief Lighting Technician |
| Terry Dee | Rigging Gaffer |
| Morgan Michael Lewis | Key Grip |
| Mark E. Matthys | Best Boy Grip |
| Jeff 'Moose' Howery | Dolly Grip |
| Joe Tomko | Dolly Grip |
| Rick Sparr | First Assistant Editor |
| John Currin | Assistant Editor |
| Margaret Adachi | Assistant Editor |
| Linda Melazzo | Key Makeup Artist |
| Rick Sharp | Key Makeup Artist |
| Steve Artmont | Makeup Artist |
| Linda Rizzuto | Key Hair Stylist |
| KG Ramsey | Hairstylist |
| Deborah K. Dee | Hairstylist |
| Kenneth Karman | Supervising Music Editor |
| Andrew Silver | Music Editor |
| George Watters II | Supervising Sound Editor |
| R.J. Palmer | Sound Editor |
| F. Hudson Miller | Sound Editor |
| Howell Gibbens | Sound Editor |
| Suhail Kafity | Sound Editor |
| Midge Costin | Sound Editor |
| Frank Howard | Sound Editor |
| Juno J. Ellis | Supervising ADR Editor |
| Denise Horta | ADR Editor |
| Stephen Janisz | ADR Editor |
| Matthew Harrison | Foley Editor |
| Jim Likowski | Foley Editor |
| Fred Burke | Foley Editor |
| Marva Fucci | Assistant Sound Editor |
| Maggie Ostroff | Assistant Sound Editor |
| Chris Ingram | Assistant Sound Editor |
| John T. Reitz | Sound Re-Recording Mixer |
| David E. Campbell | Sound Re-Recording Mixer |
| Gregg Rudloff | Sound Re-Recording Mixer |
| Thomas J. O'Connell | ADR Mixer |
| Kevin Bartnof | Foley Artist |
| Catherine Rowe | Foley Artist |
| Eric Gotthelf | Foley Mixer |
| Dennis S. Sands | Scoring Mixer |
| Jack Gill | Stunt Coordinator |
| Michael Wood | Special Effects Coordinator |
| Michael Muscarella | Construction Coordinator |
| John Mikels | Standby Painter |
| Cheryl A. Stone | Production Accountant |
| Joe Everett | Unit Publicist |
| Thomas Boland | Visual Effects Coordinator |
| Brad Kuehn | Digital Effects Supervisor |
| Carol Ashley | Digital Compositor |
| Kyle Cooper | Title Designer |
| Bob Kaiser | Color Timer |
| Mo Henry | Negative Cutter |
| Scott D. Smith | Sound Mixer |
