 | Zach Galligan als Billy Peltzer |
 | Phoebe Cates als Kate Beringer |
 | Hoyt Axton als Randall Peltzer |
 | Frances Lee McCain als Lynn Peltzer |
 | Corey Feldman als Pete Fountaine |
 | Keye Luke als Grandfather (Mr. Wing) |
 | John Louie als Chinese Boy |
 | Dick Miller als Murray Futterman |
 | Jackie Joseph als Sheila Futterman |
 | Polly Holliday als Ruby Deagle |
 | Judge Reinhold als Gerald Hopkins |
 | Edward Andrews als Mr. Corben |
 | Belinda Balaski als Mrs. Joe Harris |
 | Scott Brady als Sheriff Frank |
 | Susan Burgess als Little Girl |
 | Harry Carey, Jr. als Mr. Anderson |
 | Donald Elson als Man on Street |
 | Jonathan Banks als Deputy Brent |
 | Glynn Turman als Roy Hanson |
 | Chuck Jones als Mr. Jones |
| Arnie Moore als Pete's Father |
| Danny Llewelyn als Hungry Child |
 | Lois Foraker als Bank Teller |
 | Kenny Davis als Dorry |
 | Nicky Katt als Schoolchild |
 | Tracy Wells als Schoolchild |
| John C. Becher als Dr. Molinaro |
| Gwen Willson als Mrs. Molinaro |
| Joe Brooks als Dave Meyers (Santa) |
 | Jim McKrell als Lew Landers (WDHB-TV reporter) |
 | Frank Welker als Stripe / Mogwai / Gremlins (voice) |
 | Howie Mandel als Gizmo (voice) |
 | Fred Newman als Mogwai / Gremlins (voice) |
 | Mark Dodson als Mogwai / Gremlins (voice) |
 | Michael Winslow als Mogwai / Gremlins (voice) |
 | Peter Cullen als Mogwai / Gremlins (voice) |
 | Bob Bergen als Mogway / Gremlins (voice) |
| Michael Sheehan als Mogwai / Gremlins (voice) |
 | Bob Holt als Mogwai / Gremlins (voice) |
| Don Steele als Rockin' Ricky Rialto (voice) |
 | Jerry Goldsmith als Pay-Phone Patron (uncredited) |
 | Steven Spielberg als Man in Electric Wheelchair (uncredited) |
| Paul Acerno als Man Wearing Sunglasses on Payphone at Convention (uncredited) |
 | Tom Bergeron als TV News Reporter (uncredited) |
 | Bob Harks als Townsman (uncredited) |
| Brad Kesten als Mogwi / Gremlins / Additional Voices (uncredited) |
 | Marvin Miller als Robby the Robot (voice) (uncredited) |
 | Dean Rader Duval als Ron (uncredited) |
 | William Schallert als Father Bartlett (uncredited) |
 | Kenneth Tobey als Mobil Gas Station Attendant (uncredited) |
| Tina Hirsch | Editor |
| James H. Spencer | Production Design |
| Steven Spielberg | Executive Producer |
| Richard L. Anderson | Supervising Sound Editor |
| Michael Finnell | Producer |
| John Hora | Director of Photography |
| Greg LaCava | Makeup Artist |
| Noel Regney | Original Music Composer |
| Rudy Doucette | Stunts |
| Joe Dante | Director |
| Jackie Carr | Set Decoration |
| Susan Arnold | Casting |
| Cheri Ruff | Hairstylist |
| Mike H. McGaughy | Stunt Coordinator |
| Kenneth Hall | Music Editor |
| Bob MacDonald Jr. | Special Effects |
| Jerry Goldsmith | Original Music Composer |
| Carol Green | Second Assistant Director |
| Steve Maslow | Sound Re-Recording Mixer |
| Kathleen Kennedy | Executive Producer |
| Bill Varney | Sound Re-Recording Mixer |
| Kevin O'Connell | Sound Re-Recording Mixer |
| Ralph Nelson Jr. | Still Photographer |
| James Quinn | First Assistant Director |
| Mike H. McGaughy | Stunts |
| Richard Moran | Key Grip |
| Gene McLaughlin | Stunts |
| Kenneth Gilbert | Script Supervisor |
| Douglas Vaughan | Boom Operator |
| Norman Harris | Gaffer |
| Donah Bassett | Negative Cutter |
| Phil Rawlins | Unit Production Manager |
| William F. Matthews | Set Designer |
| Rob Harris | Unit Publicist |
| Michael Muscarella | Construction Coordinator |
| Tom Finan | Assistant Editor |
| Frank Marshall | Executive Producer |
| Rosemary Johnston | Stunts |
| Chris Columbus | Writer |
| Bruce Edwin Gregory | Assistant Property Master |
| Marty Wunderlich | Property Master |
| Warren Hamilton Jr. | Sound Editor |
| Ken King | Production Sound Mixer |
| Mark A. Mangini | Supervising Sound Editor |
| Tim Mangini | Assistant Sound Editor |
| Stephen Purvis | Dialogue Editor |
| John Roesch | Foley Artist |
| Joan Rowe | Foley Artist |
| David E. Stone | Sound Editor |
| Rocco Gioffre | Matte Painter |
| Terry Leonard | Stunt Coordinator |
| Norman Cattell | First Assistant Camera |
| Michael A. Jones | Camera Operator |
| William Kenney | Dolly Grip |
| Ron Kenyon | Best Boy Electric |
| Robert Miller | Best Boy Grip |
| Lex Rawlins | Second Assistant Camera |
| Norman A. Burza | Costume Supervisor |
| Linda Matthews | Costume Supervisor |
| Robert Raring | Color Timer |
| Arthur Morton | Orchestrator |
| Robert Neilson | Transportation Coordinator |
| Dave Robling | Transportation Captain |
| Ray Berwick | Animal Coordinator |
| Karen Shaw | Production Secretary |
| Steven Spielberg | Presenter |
| Chris Walas | Creature Design |
